896 Index adhesion molecules, angiomatosis 735 adipocytes actinomycosis 274 feline acquired skin fragility syndrome 390 feline pansteatitis 553 idiopa

Transcription

1 Skin Diseases of the Dog and Cat: Clinical and Histopathologic Diagnosis, Second Edition Thelma Lee Gross, Peter J. Ihrke, Emily J. Walder, Verena K. Affolter Copyright 2005 by Blackwell Science Ltd Index Note: page numbers in italics refer to figures; those in bold refer to tables. Synonyms are in parentheses following the name of the condition. Differential diagnoses are listed under the condition... abscess mycobacterial opportunistic infection 284 sterile of repositol injection 541, 542, clinical features 542, histopathology 545 Abyssinian cats feline ceruminous cystomatosis 667 psychogenic alopecia 514 Acanthocheilonema 225, 226, acantholysis canine dermatophytosis 414 impetigo 6 inflamed linear epidermal nevus 156 metastatic pulmonary carcinoma in cats 704 nailbed squamous cell carcinoma 700 paraneoplastic pemphigus 37 pemphigus erythematosus 57 pemphigus foliaceus 6, 15 16, 415, 416, 417 pemphigus vulgaris 33, 34 subcorneal pustular dermatosis 20 superficial pustular dermatophytosis 12 superficial pustular drug reactions 24 superficial spreading pyoderma 9 acanthoma see infundibular keratinizing acanthoma; melanocytoma acanthoma acanthosis nigricans of Dachshunds clinical features 151 histopathology acariasis flea allergy dermatitis 210, 211 food allergy 207, 208 see also cheyletiellosis; demodicosis, canine; demodicosis, feline follicular; demodicosis, feline superficial; notoedric acariasis; sarcoptic acariasis acne, canine (muzzle folliculitis and furunculosis) 423, clinical features acral lick dermatitis 429 interdigital furunculosis 432 histopathology acne, feline clinical features callus pyoderma 435 contagious 438 histopathology acral lick dermatitis (lick granuloma) 140 2, 429 clinical features callus 185 fibroadnexal hamartoma 606 interdigital furunculosis 432 linear epidermal hamartoma 565 histopathology 141 2, 429, 430 traumatic furunculosis 420, 423 acrochordon (skin tag, fibroepithelial polyp, fibromatous polyp, fibromatous plaque) clinical features fibroadnexal hamartoma 606 fibroma 720, 721 granulation tissue-type hemangioma lymphangiomatosis 749 squamous papilloma 567 histopathology acrochordonous plaque clinical features 714 histopathology acrodermatitis of Bull Terriers (lethal acrodermatitis of Bull Terriers) clinical features zinc-responsive dermatosis 191 histopathology acromelanism 498 actin, smooth muscle 256 actinic carcinoma in situ 576 actinic comedones see comedones, actinic actinic furunculosis see furunculosis, actinic actinic keratosis (solar keratosis, squamous cell carcinoma in situ) , 399, acantholytic variant actinic comedones 184 basal cell carcinoma coexistence 590 clinical features , 576 bowenoid in situ carcinoma histopathology 150 1, lichenoid 576 actinomycosis clinical features foreign body reactions 337 histopathology infection in foreign body reactions

2 896 Index adhesion molecules, angiomatosis 735 adipocytes actinomycosis 274 feline acquired skin fragility syndrome 390 feline pansteatitis 553 idiopathic sterile nodular panniculitis 550 mycobacterial opportunistic infection 285 nocardiosis 274 pancreatic panniculitis 557 post-traumatic alopecia traumatic panniculitis 546 vasculitic panniculitis of thermal burns 547 adipose tissue lipoma 768 fibrotic fibrolipoma saponification 557 traumatic panniculitis 546 see also steatitis adnexa atrophic diseases canine nodular dermatofibrosis 712 dysplastic diseases adnexal glands, epitheliotropic lymphoma 878 adrenal sex hormone imbalance see alopecia X Adriamycin -induced alopecia see alopecia, doxorubicininduced Airedale Terrier, cyclical flank alopecia 526 Akita facially-predominant pemphigus foliaceus 15 sebaceous adenitis 186, 187, 455 allergic contact dermatitis 105 9, clinical features allergic contact dermatitis 109 arthropod bite reactions 345 atopic dermatitis 203, feline superficial demodicosis 225 Malassezia dermatitis 146 pseudopelade 469 seborrheic dermatitis 165 superficial spreading pyoderma 200 histopathology 106 9, mucinosis association 381, 383 allergic miliary dermatitis, feline , 211, 212 clinical features atopic dermatitis 204, 205 feline eosinophilic plaque 122, 353 food allergy 207 histopathology , 211, 212 allergic spongiotic reaction facial dermatitis of Persian and Himalayan cats 114 allergy feline psychogenic alopecia 515 hyperplastic dermatosis of West Highland White Terriers 148 irritant contact dermatitis 99, 100 hyperplastic dermatitis impetiginization superficial spreading pyoderma 9 see also atopic dermatitis; flea allergy; food allergy alopecia acquired pattern (canine pinnal alopecia, pattern baldness, Dachshund pattern baldness) clinical features congenital hypotrichosis 530 histopathology areata clinical features follicular lipidosis 531 histopathology canine cutaneous histiocytoma 841 canine traction canine ischemic dermatopathy 505 chemotherapy-induced color dilution (blue dog disease, color mutant alopecia) clinical features histopathology congenital (see hypotrichosis, congenital) cyclical flank (seasonal flank alopecia, recurrent flank alopecia, flank alopecia) clinical features histopathology doxorubicin-induced (Adriamycin -induced alopecia) , 512 telogen effluvium 510 endocrine, acquired pattern alopecia 503 canine follicular dysplasia 525 canine hyperglucocorticoidism 487 female hyperestrogenism 494 hypothyroidism Sertoli cell tumor-associated skin disease telogen effluvium 510 feline hyperglucocorticoidism association 488, 489 feline psychogenic (self-induced psychogenic feline hair loss) clinical features histopathology 515 female hyperestrogenism hypothyroidism mucinosa (see mucinosis, follicular) mural folliculitis 470 paraneoplastic feline hyperglucocorticoidism 490 pathological postclipping clinical features alopecia X 497 histopathology 498 postrabies vaccination panniculitis 539 post-traumatic clinical features histopathology self-induced 514 Sertoli cell tumor-associated skin disease 491 traction (mechanical alopecia) clinical features post-traumatic alopecia 507 histopathology vaccine-induced sarcoma 797 zebra pattern 508 see also cicatricial alopecia alopecia X (adrenal sex hormone imbalance, follicular dysfunction of plush-coated dogs, adrenal hyperplasia-like syndrome, growth hormone/castration-responsive dermatosis) clinical features 494 5

3 Index 897 canine follicular dysplasia canine hyperglucocorticoidism 487 hypothyroidism 484 postclipping alopecia 498 Sertoli cell tumor-associated skin disease histopathology alopecic breeds 528 amine precursor uptake and decarboxylation (APUD) cells 787 amino acids, superficial necrolytic dermatitis 86 7, 91 amphoterocin B, calcinosis cutis 374 amyloid 385, 386 plasmacytoma amyloidosis cutaneous clinical features histopathology organ-limited 384 plasmacytoma systemic 384 anagen 604 follicular lipidosis 531 premature cessation 510 anagen effluvium 509 anaphylaxis, fire ant bites 349 anaplasia, vaccine-induced sarcoma 800 anaplastic carcinoma, anaplastic sarcoma with giant cells 809 epithelioid angiosarcoma 752 anaplastic sarcoma with giant cells 723, 724 fibrosarcoma 725 anatrichosomiasis, cutaneous (Anatrichosoma) clinical features histopathology Ancylostoma 228 ancylostomiasis, cutaneous (see hookworm dermatitis) angioedema (hives) clinical features histopathology insect bite reactions 343 angioendotheliomatosis, malignant (intravascular lymphoma) 882, 883, chronic lymphocytic leukemia with cutaneous lesions 889 angiofibrolipoma 769 angiokeratoma 741, 742, angioleiomyoma 778, 779 angioleiomyosarcoma 781 glomus tumors angiolipoma 769 angiomatosis 738 cavernous hemangioma 743 infiltrative hemangioma 743 infiltrative 771, 772 angiomatosis arteriovenous 737 bacillary 735 clinical features arteriovenous hemangioma 744 granulation tissue-type hemangioma infiltrative hemangioma 743 histopathology immunohistochemistry progressive 736, hemangiosarcoma 751 infiltrative angiolipoma 772 lymphangiomatosis 749 phlebectasia 243 telangiectasia 242 secondary to lymphedema (Klippel Trenaunay-like syndrome) 736 7, , 741, 742 granulation tissue-type hemangioma angiosarcoma anaplastic 752, 755 epithelioid 752, 753 feline abdominal 754, 755 of lymphatic origin 752, 755 mixed spindle polygonal 752 of vascular origin 752, 755 see also hemangiosarcoma; lymphangiosarcoma alpha-1-antichymotrypsin, granular cell tumor 804, 805, 806 antidesmoglein autoantibody 13 14, 33 antigen antibody reaction see Splendore Hoeppli reaction anti-mycobacterium bovis (BCG) polyclonal stain canine leproid granuloma 283 feline leprosy syndrome 280 mycobacterial opportunistic infection 286 antinuclear antibody (ANA) test pemphigus erythematosus 58 systemic lupus erythematosus 56 alpha-1-antitrypsin, granular cell tumor 804, 805, 806 ants eosinophilic furunculosis of the face 451 see also fire ant bites apocrine adenocarcinoma, eccrine carcinoma 690 metastatic pulmonary adenocarcinoma in cats 706 apocrine cyst 666 apocrine cystadenoma 670 apocrine cystadenocarcinoma 678 apocrine cystadenoma 670 apocrine cystadenoma (sweat gland cystadenoma, apocrine hidrocystoma) clinical features apocrine cyst 666 apocrine cystadenocarcinoma 680 histopathology multicentric canine apocrine cystomatosis apocrine cystic calcinosis apocrine cystomatosis, canine 667 apocrine ductular adenocarcinoma clear cell clear cell basal cell carcinoma 596 acantholytic squamous cell carcinoma 586 canine apocrine ductular adenoma 673 feline apocrine ductular adenoma 674 apocrine ductular adenoma (ductular sweat gland adenoma, basaloid sweat gland adenoma, nodular hidradenoma) canine 673 clinical features apocrine ductular carcinoma 684, 685 trichoblastoma with outer root sheath differentiation 628

4 898 Index feline 674 solid-cystic apocrine ductular adenoma 676 histopathology immunohistochemistry solid-cystic 674 6, 677 apocrine ductular carcinoma (ductular sweat gland adenocarcinoma, malignant nodular hidradenoma, hidradenocarcinoma) 681 2, 683, clear cell 681, balloon cell melanoma 831 clinical features elbow 682, 683, 684 histopathology 682, 683, immunohistochemistry solid-cystic 681, apocrine secretory adenocarcinoma (sweat gland adenocarcinoma, epitrichial adenocarcinoma) clinical features 677 apocrine secretory adenoma 671 complex 680 histopathology immunohistochemistry 681 simple apocrine secretory adenoma (sweat gland adenoma, epitrichial sweat gland adenoma) clinical features 670 apocrine adenocarcinoma 679 complex histopathology simple 670, 671 apocrine sweat glands carcinoma perianal gland carcinoma 662 ectasia in flea allergy dermatitis 211 lymphocytic infiltration 78 apoptosis discoid lupus erythematosus 55, 264 basal cell 54 erythema multiforme 66, 68 keratinocytes 35, 54, 75 erythema multiforme 76, 77 feline thymoma-associated exfoliative dermatitis 78 9 toxic shock syndrome 85 lupoid onychitis 72 paraneoplastic pemphigus 37, 38 pemphigus foliaceus 14, 17, 18, 38 superficial necrolytic dermatitis 89 verrucous squamous cell carcinoma 588 vesicular cutaneous lupus erythematosus of Shetland Sheepdog and Collie 62 viral exophytic papilloma 569 warty dyskeratoma 614 armadillo Westie syndrome see hyperplastic dermatosis of West Highland White Terrier arrector pili muscle 604 hamartoma 778 piloleiomyoma 779 arteriovenous hemangioma 741, 744, 745 arteritis of the nasal philtrum see proliferative arteritis of the nasal philtrum arthropod bite reactions (insect bite granuloma) canine eosinophilic dermatitis 361 canine eosinophilic granuloma 358 clinical features histopathology arthropods, venomous angioedema 240 eosinophilic furunculosis of the face urticaria 240 aspergillosis asthenia, cutaneous see Ehlers Danlos syndrome Atlee s sign 144 atopic dermatitis 109, angioedema 240 clinical features epitheliotropic lymphoma 877 flea allergy dermatitis 211 urticarial allergic eruption 213 vitiligo 234 diagnostic criteria feline allergic miliary dermatitis 118 feline indolent ulcer association 128 German Shepherd Dog pyoderma 425 histopathology hyperplastic dermatosis of West Highland White Terriers 147 Malassezia dermatitis 143 urticaria 240 atrichial sweat gland carcinoma see eccrine carcinoma B cells 866 cutaneous lymphocytosis 872, 874 phenotypic characteristics 867 bacille Calmette Guérin (BCG) stain see anti-mycobacterium bovis (BCG) polyclonal stain bacterial endocarditis, septic vasculitis 238 bacterial folliculitis, deep 416 bacterial folliculitis, superficial (superficial pyoderma) clinical features eosinophilic pustulosis 418 feline dermatophytosis 413 deep bacterial folliculitis and furunculosis 421 flea allergy dermatitis association 211 histopathology bacterial folliculitis and furunculosis, deep (deep pyoderma) clinical features canine acne 436 eosinophilic furunculosis of the face 453 German Shepherd Dog pyoderma 426 interdigital furunculosis 432 kerion 441 postgrooming furunculosis histopathology bacterial infection angiomatosis 735 feline herpesvirus ulcerative dermatitis 352 metatarsal fistulation of German Shepherd Dog 555 spider bites 348 secondary bullous pemphigoid 27 burns 96

5 Index 899 chronic hyperplastic dermatitis 136 foreign body reactions 337 cystic follicles in fibroadnexal hamartoma 607 familial pawpad hyperkeratosis 180 foreign body reactions 337 giant cell dermatosis in FeLV-positive cats 159 hypothyroidism 482 ichthyosis 176 interdigital furunculosis 432 metatarsal fistulation of German Shepherd Dog 554 nasodigital hyperkeratosis 169 Schnauzer comedo syndrome 182 superficial necrolytic dermatitis 88 bacterial intertrigo 261 mucocutaneous pyoderma 263 bacterial pseudomycetoma (cutaneous bacterial granuloma, botryomycosis) 275 6, 277 clinical features actinomycosis 275 Nocardia 275 histopathology 276, 277 balloon cell(s) 826, 827, balloon cell melanocytoma 817, granular cell tumor 806 Merkel cell tumor 787, transmissible venereal tumor 802, 803 balloon cell melanoma, apocrine ductular carcinoma 687 clear cell basal cell carcinoma 596 Bartonella bacilliformis 735 basal cell(s) canine ischemic dermatopathy 504 degeneration in discoid lupus erythematosus vacuolation in lupoid onychitis 72 basal cell carcinoma (basal cell epithelioma) bowenoid in situ carcinoma malignant progression 580 clear cell apocrine ductular carcinoma sebaceous carcinoma 652 tricholemmoma 622 clinical features feline apocrine ductular adenoma 674 sebaceous epithelioma 650 solid-cystic apocrine ductular adenoma spindle cell trichoblastoma 631 feline viral plaque malignant transformation 575 granular cell granular cell type trichoblastoma 633 histopathology immunohistochemistry 596 keratinizing basaloid trichoepithelioma basosquamous carcinoma 598 malignant pilomatricoma 638 malignant trichoepithelioma pilomatricoma 625 metastases 591 solid basosquamous carcinoma 598 sebaceous carcinoma 654 see also nailbed basal cell carcinoma basal cell tumor see apocrine ductular adenoma; trichoblastoma Basidiobolus 305, 307, 308, 310 basosquamous carcinoma (basal-squamous cell carcinoma) clinical features 597 keratinizing basal cell carcinoma histopathology bathing, postgrooming furunculosis 427 Beagles, lymphangioma 748 Belgian Sheepdog, sebaceous adenitis 455 Belgian Tervuren, vitiligo 232, 233 Bernese Mountain Dogs, histiocytic sarcoma 849 betamethasone, topical corticosteroid reaction 392 Bichon Frises, postrabies vaccination panniculitis 539 Birt Hogg Dube syndrome 711 black flies black hair follicular dysplasia see dysplasia, black hair follicular blaschkitis 156, 192 blastomycosis, cutaneous (Blastomyces dermatitidis) 291 5, 292, 297 clinical features cryptococcosis 297 dangers to humans histopathology blue dog disease see alopecia, color dilution bone invasion in eccrine carcinoma 689 proliferation in nailbed keratoacanthoma 699 Border Terrier, sebaceous gland hyperplasia 531, 532 Boston Terrier acquired pattern alopecia 502 calcinosis circumscripta 379 botryomycosis see bacterial pseudomycetoma bovine papillomavirus-1 and -2 (BPV1 and BPV2) 730 bowenoid in situ carcinoma (Bowen s disease, multicentric papillomavirus-induced squamous cell carcinoma in situ) 150 1, basal cell carcinoma origin 590 clinical features 579 actinic keratosis 577 feline follicular demodicosis association 448 feline viral plaque malignant transformation 575 histopathology Boxer calcinosis circumscripta 379 cyclical flank alopecia 526 dermoid cyst 566 kerion 440 Briard, sebaceous gland hyperplasia 531 bronchopneumonia, acrodermatitis of Bull Terriers 194 buffalo gnat bulbitis, alopecia areata Bull Terrier superficial pustular dermatophytosis 12 see also acrodermatitis of Bull Terriers bullae, hemorrhagic deep bacterial folliculitis and furunculosis 421 German Shepherd Dog pyoderma 426

6 900 Index Bulldog, English acrochordonous plaque 714 calcinosis cutis 375 female hyperestrogenism 493 Bulldog, French, female hyperestrogenism 493 bullous pemphigoid clinical features 27 8 epidermolysis bullosa acquisita 42 hereditary epidermolysis bullosa 40 linear IgA dermatosis 46 mucous membrane pemphigoid 32 mycosis fungoides 880 histopathology burns 94 8 chemical 97 irritant contact dermatitis 102 clinical features 94 6 first-degree toxic epidermal necrolysis 83 histopathology 96 8 thermal 96 7, 98 cryoglobulinemia/cryofibrinemia 244 septic vasculitis 238, 239 vasculitic panniculitis 547 8, 552 calcification calcinosis circumscripta 378 dystrophic 373 4, 379 iatrogenic 373, 374, 379 idiopathic 373, 374, 379 metastatic 373, 374, 378, 379 trichoepithelioma 618 calcinosis circumscripta (tumoral calcinosis) 373, clinical features calcinosis cutis 375 histopathology idiopathic 374 calcinosis cutis clinical features histopathology hyperglucocorticoidism 485, calcium chloride therapy 374 calcium deposition 373 calcium gluconate therapy 374, 375, 377 calcium ion pump mutations 43 callus (pressure point granuloma) 184 5, 186 clinical features actinic comedones 184 histopathology 185, 186 see also keratoma, pawpad callus pyoderma (pressure point pyoderma) 420, 423, clinical features acral lick dermatitis 429 actinic furunculosis 431 canine acne interdigital furunculosis 432 histopathology candidiasis (Candida) 9 11 clinical features 9 10 superficial pustular dermatophytosis 13 histopathology secondary in acrodermatitis of Bull Terriers 194 canine nodular dermatofibrosis see dermatofibrosis, canine nodular capillary hemangioma 741, hemangiosarcoma 751 scrotal-type vascular hamartoma 739 carcinoma cuniculatum 588 carprofen 367 castration perianal gland adenoma 655 perianal gland carcinoma 659 Cavalier King Charles Spaniel canine eosinophilic granuloma 359, 360 ichthyosis 163, 164 pancreatic panniculitis 556 cavernous hemangioma 741, 743 lymphangiomatosis 749 cedar chip bedding cellulitis, juvenile see sterile granulomatous dermatitis and lymphadenitis, juvenile ceroid pigment, feline pansteatitis 553 ceruminous cystomatosis, feline clinical features 667 histopathology 668 chemotherapy, alopecia cheyletiellosis (Cheyletiella dermatitis) clinical features notoedric/sarcoptic acariasis 219 histopathology Chihuahua, acquired pattern alopecia 502 Chinese Shar Pei canine cutaneous histiocytoma 841 mucinosis 381, 382, 383 neutrophilic immunologic vasculitis 244, 245, 246, 247 occult demodicosis 444 cholesterol 330, 331 cholesterol clefts cutaneous xanthoma 331, 332 follicular cyst 609 chondrolipoma 770 Chow Chow alopecia X 495, 497 facially-predominant pemphigus foliaceus 15 Churg Strauss granuloma 337, 339, 340 familial cutaneous vasculopathy of German Shepherd Dogs 365 chylomicrons 330 cicatricial alopecia (cicatrix, scarring alopecia) 397 8, 399, 509 clinical features morphea 397 histopathology 398, 399 cicatricial pemphigoid see mucous membrane pemphigoid claw abnormalities, lupoid onychitis 70 2 clear cells, solid-cystic apocrine ductular adenoma 675 coagulation factors, angiomatosis 735 coagulation necrosis 96 vasculitic panniculitis of thermal burns 547, 548 Coccidioides immitis 292

7 Index 901 coccidiomycosis, cutaneous clinical features histopathology Cocker Spaniel American, cryptococcosis 296 amyloidosis 384 5, 386 cheyletiellosis 221 pancreatic panniculitis 556 sarcoptic acariasis 217 sebaceous epithelioma 648 seborrhea 163 vitamin A-responsive dermatosis 165, 166 collagen acrochordon calcinosis cutis chondrolipoma 770 cicatricial alopecia 398, 399 feline acquired skin fragility syndrome 391 palisading granuloma postrabies vaccination panniculitis 540, 541 solar elastosis and fibrosis 400 topical corticosteroid reaction 393 collagen bundles acrochordonous plaque 715 canine mast cell tumors 855 canine nodular dermatofibrosis 712, 713 dermatofibroma 716, 717 dermoid cyst 566 fibroadnexal hamartoma 606 fibroma 720 fibrosarcoma 723, 724 collagen fibers canine eosinophilic granuloma 360 canine keloidal fibroma Ehlers Danlos syndrome familial cutaneous vasculopathy of German Shepherd Dogs 365 feline eosinophilic granuloma 356, 357 perforating dermatitis 396 collagen IV epidermolysis bullosa acquisita 42 linear IgA dermatosis 45 collagen VII, epidermolysis bullosa acquisita 41 collagen XVII 30 hereditary epidermolysis bullosa 38 9 collagenolytic granuloma see eosinophilic granuloma, canine collagenosis, perforating see perforating dermatitis collagenous hamartoma (collagenous nevus) clinical features 710 canine nodular dermatofibrosis 712 fibroma 720 histopathology Collie bullous pemphigoid 28 canine familial dermatomyositis 51 discoid lupus erythematosus 53 idiopathic sterile nodular panniculitis 550 pemphigus erythematosus 18 pemphigus vulgaris 34 pyotraumatic dermatitis 116 vesicular cutaneous lupus erythematosus 55, 57, 61 3 color mutant alopecia see alopecia, color dilution comedones actinic 150, 183 4, 399 actinic furunculosis 431 clinical features callus 185 callus pyoderma 435 topical corticosteroid reaction 394 deep bacterial folliculitis and furunculosis 420 histopathology 184 canine acne canine hyperglucocorticoidism 485 congenital hypotrichosis 529 feline acne 438, 439 feline hyperglucocorticoidism 489 female hyperestrogenism 493 hyperglucocorticoidism 486 interdigital furunculosis 432 Schnauzer comedo syndrome topical corticosteroid reaction 392, 393, 394 complement C5b 9 membrane attack complex 248 complement factor 3 (C3) 6, 17 Conidiobolus 305, 307, 308 connective tissue collagenous in morphea 397 fibrous in cicatricial alopecia 398 connective tissue disease degenerative/dysplastic/depositional neutrophilic immunologic vasculitis 245 contact dermatitis see allergic contact dermatitis; irritant contact dermatitis Coonhounds, apocrine ductular carcinoma 681 copper deficiency, acrodermatitis of Bull Terriers corn see keratoma, pawpad cornification, abnormal corticosteroid reaction, topical clinical features actinic comedones 183, 184 histopathology cowpox virus infection, feline clinical features 127 feline herpesvirus ulcerative dermatitis 126 histopathology 128 cryofibrinogenemia and cryoglobulinemia (cutaneous cryopathies) clinical features histopathology 244 cryptococcosis, cutaneous (Cryptococcus neoformans) 292, clinical features sporotrichosis 298, histopathology cryptorchidism, Sertoli cell tumor-associated skin disease 490, 491 Cushing s disease see hyperglucocorticoidism cutaneous and renal glomerular vasculopathy see vasculopathy of Greyhounds cutaneous cryopathies see cryofibrinogenemia and cryoglobulinemia cutaneous flushing clinical features histopathology 242 3

8 902 Index cutaneous horn of feline pawpad 562, 563 cystic hyperplasia of sweat glands see apocrine cystomatosis, canine cysts dilated pore 612, 613 infundibular keratinizing acanthoma 619 pilomatricoma sebaceous adenoma 647 warty dyskeratoma see also apocrine cyst; apocrine cystadenoma; ganglion; isthmus cyst; matrical cyst; nailbed epithelial inclusion cyst cytokeratin immunostains 589, 596 apocrine adenocarcinoma 681 apocrine ductular adenoma 672, apocrine ductular carcinoma eccrine carcinoma 691 metastatic pulmonary adenocarcinoma in cats 706 nailbed squamous cell carcinoma 702 sebaceous carcinoma trichoblastoma Dachshund pattern baldness see alopecia, acquired pattern Dachshunds alopecia areata ear margin seborrhea 167 idiopathic sterile nodular panniculitis 548, 549, 550, 551 juvenile sterile granulomatous dermatitis and lymphadenitis 328 sebaceous adenitis 187 see also acanthosis nigricans of Dachshunds Darier s disease, canine (canine Hailey Hailey disease) 43 5 clinical features 43 4 actinic keratosis 578 histopathology 44 5 Darier s sign 861 degloving injury Ehlers Danlos syndrome 389 Demodex canis 442, 443, 444 Demodex cati Demodex gatoi Demodex injai 443, 446 demodicosis, canine (demodectic mange, demodectic acariasis) 442 4, 445, canine hyperglucocorticoidism 485 clinical features deep bacterial folliculitis and furunculosis 424 sebaceous adenitis 456 deep bacterial folliculitis and furunculosis 420 generalized 443 histopathology 444, 445, juvenile-onset generalized 443 localized 443 mural folliculitis occult 444, 446, 465, 466 eosinophilic mucinotic mural folliculitis 471 demodicosis, feline follicular (demodectic mange, demodectic acariasis) clinical features histopathology demodicosis, feline superficial (demodectic mange, demodectic acariasis) clinical features feline dermatophytosis 413 histopathology dendritic cell(s) cutaneous histiocytoma 842 melanocytoma 819 melanoma 826, 827 phenotypic characteristics 838 proliferation 837 dendritic cell histiocytosis, feline progressive clinical features 845 cutaneous xanthoma 333 feline leprosy syndrome 280 giant epithelioid melanoma 832 mast cell tumors 860 pleomorphic mast cell tumors 861 histopathology immunohistochemistry 848 dendritic cell sarcoma see histiocytic sarcoma depigmentation epitheliotropic lymphoma 877 idiopathic 233 lips with mucocutaneous pyoderma 261 vitiligo Vogt Koyanagi Harada-like syndrome 267 dermal epidermal junction interface diseases dermatofibroma clinical features 716 benign peripheral nerve sheath tumor 791, 792 canine keloidal fibroma 722 fibroma histopathology dermatofibrosis, canine nodular , 713 clinical features 712 collagenous hamartoma 711 fibroma 720 histopathology 712, 713 dermatographism 240, 861 dermatomyositis, canine 248, post-traumatic alopecia 507 traction alopecia 509 familial 49, 51 histopathology dermatopathy, canine ischemic 247, post-traumatic alopecia 507 traction alopecia 509 histopathology dermatophytic pseudomycetoma clinical features feline dermatophytosis 411 histopathology dermatophytosis canine (canine ringworm) clinical features histopathology canine demodicosis 446 7

9 Index 903 deep bacterial folliculitis and furunculosis 424 feline follicular demodicosis 449 pemphigus foliaceus 416 feline (feline ringworm) clinical features sebaceous adenitis 457 histopathology hyphae 412, 415 keratin-colonizing 464 kerion 441 mural folliculitis secondary in superficial necrolytic dermatitis 88 spores 412, 415 superficial pustular 11 13, clinical features candidiasis pemphigus foliaceus 17 histopathology dermatosparaxis see Ehlers Danlos syndrome dermis granulomatous diseases infectious noninfectious lichenoid diseases nodular and diffuse diseases with prominent eosinophils, neutrophils or plasma cells ossification 374, perivascular diseases pyogranulomatous diseases infectious noninfectious vascular diseases dermoid cyst (dermoid sinus, pilonidal cyst) clinical features 566 fibroadnexal hamartoma 607 infundibular cyst 609 histopathology desmoglein 1 4, 13 pemphigus foliaceus 17 pemphigus vulgaris 33 desmoglein 3, pemphigus vulgaris 32, 33 diabetes mellitus feline acquired skin fragility syndrome feline follicular demodicosis 447, 448 feline hyperglucocorticoidism association 488 diarrhea, acrodermatitis of Bull Terriers 194 dilated pore (of Winer) 612, 613 dirofilariasis, cutaneous discoid lupus erythematosus 52 5, clinical features 52 3 erythema multiforme 68, 78 exfoliative cutaneous lupus erythematosus of German Shorthaired Pointer feline thymoma-associated exfoliative dermatitis 70 ischemic dermatopathy 52 lichenoid keratosis 271 mucocutaneous pyoderma 263 pemphigus foliaceus 266 psoriasiform-lichenoid dermatosis 270 systemic lupus erythematosus 57 vesicular cutaneous lupus erythematosus of Shetland Sheepdog and Collie 62 vitiligo 234 Vogt Koyanagi Harada-like syndrome 268 histopathology 54 5, mucinosis association 383 solar vasculopathy association 257, 258 disseminated intravascular coagulation (DIC) sterile pustular erythroderma of Miniature Schnauzers 21 toxic shock syndrome 84 Doberman Pinscher bullous pemphigoid 28 color dilution alopecia 519 cryptococcosis 296 follicular dysplasia 524 sarcoptic acariasis 217 doggie door syndrome 546 Dogues de Bordeaux, familial pawpad hyperkeratosis 180 dorsal thermal necrosis 95 doxorubicin see alopecia, doxorubicin-induced drug reactions angioedema 240 canine eosinophilic dermatitis 361 mural folliculitis 466 pseudopelade 469 sebaceous adenitis 457 cutaneous flushing 241, 242 erythema multiforme 66 feline allergic miliary dermatitis 118 granulomatous mural folliculitis in dogs lupoid, exfoliative cutaneous lupus erythematosus of German Shorthaired Pointer systemic lupus erythematosus 57 vesicular cutaneous lupus erythematosus of Shetland Sheepdog and Collie 62 neutrophilic immunologic vasculitis 245 superficial pustular 23 5 clinical features 23 4 pemphigus foliaceus 17 sterile pustular erythroderma of Miniature Schnauzers 21 histology 24 5 toxic epidermal necrolysis 82 urticaria 240 ductular sweat gland adenocarcinoma see apocrine ductular carcinoma ductular sweat gland adenoma/carcinoma, solid-cystic, basal cell carcinoma 592 3, 594 spindle cell trichoblastoma Dunstan s blue line 8 dyskeratosis, warty dyskeratoma 614 dyslipoproteinemias 330 dysplasia adnexal black hair follicular clinical features histopathology bowenoid in situ carcinoma 579

10 904 Index ear canine demodicosis 443 fly-strike 342 see also pinna; proliferative thrombovascular necrosis of the pinnae ear canal, ceruminous gland apocrine cyst 666 ear margin dermatosis see seborrhea, canine ear margin eccrine carcinoma (atrichial sweat gland carcinoma) clinical features 689 metastatic pulmonary adenocarcinoma in cats 706 nailbed squamous cell carcinoma histopathology immunohistochemistry 691 eccrine glands 665 Ehlers Danlos syndrome (cutaneous asthenia, dermatosparaxis) clinical features feline acquired skin fragility syndrome histopathology ehrlichiosis German Shepherd Dog pyoderma 425 septic vasculitis 238 elastin fibrils, eosinophilic wavy 64, 65 endorphin blockers, acral lick dermatitis 140 endothelial cells angiomatosis 737 arteriovenous hemangioma 744 cavernous hemangioma 743 hemangiosarcoma 749, 751 lymphangiosarcoma 753 lymphatic 748 markers 735 entomophthoromycosis 303 9, 310 clinical features histopathology 306 9, 310 eosinophilic dermatitis, canine (eosinophilic dermatitis and edema, eosinophilic cellulitis) clinical features canine eosinophilic granuloma 360 sterile pustular erythroderma of Miniature Schnauzers 370 histopathology eosinophilic folliculitis 208 eosinophilic furuncles, sterile eosinophilic pustulosis 418 eosinophilic furunculosis 342 canine eosinophilic granuloma association 358 canine eosinophilic granuloma 360 deep bacterial folliculitis and furunculosis 424 eosinophilic pustulosis 418 kerion postgrooming furunculosis 428 of the face clinical features histopathology eosinophilic granuloma, canine (canine collagenolytic granuloma) 342, clinical features canine eosinophilic dermatitis 362 familial cutaneous vasculopathy of German Shepherd Dogs 366 plasma cell pododermatitis 364 histopathology oral 359, 360 eosinophilic granuloma, feline (feline collagenolytic granuloma, feline linear granuloma) clinical features feline herpesvirus ulcerative dermatitis 352 feline mosquito bite sensitivity 345, 347 feline indolent ulcer association 129 histopathology oral 356 eosinophilic granuloma complex 109 eosinophilic indolent ulcer, feline herpesvirus ulcerative dermatitis 126 feline mosquito bite hypersensitivity eosinophilic intraepidermal pustulation, allergic contact dermatitis 109 eosinophilic plaque, feline , 121 2, clinical features feline allergic miliary dermatitis 120, 211 feline herpesvirus ulcerative dermatitis 126, 352 feline indolent ulcer 130, 354, 355 feline mosquito bite hypersensitivity 123 feline mosquito bite sensitivity 345, 347 feline eosinophilic granuloma association 355 histopathology , 121 2, 353 eosinophilic pustules, intraepidermal 146 eosinophilic pustulosis, sterile of dogs clinical features eosinophilic furunculosis of the face 453 superficial bacterial folliculitis 410 histopathology 418 eosinophilic ulcer, feline see indolent ulcer, feline ephelids, lentigo 814 epidermal melanin unit 822 epidermal squamous cell carcinoma epidermis crusting diseases dysplasia with secondary Malassezia pachydermatis infection 146, 147 hyperplastic diseases necrotizing diseases pustular diseases 4 25 spongiotic diseases tumors ulcerative diseases vesicular diseases epidermodysplasia verruciformis see viral plaque, feline epidermolysis bullosa, hereditary (congenital epidermolysis bullosa, epidermolysis bullosa congenita) clinical features 38 9 bullous pemphigoid 29 epidermolysis bullosa acquisita 42 linear IgA dermatosis 46 mucous membrane pemphigoid 32 dystrophic 38, histopathology junctional 38, 39 40

11 Index 905 epidermolysis bullosa acquisita (acquired epidermolysis bullosa) 40 3 Brunsting Perry form 41 clinical features 40 1 bullous pemphigoid 29 hereditary epidermolysis bullosa 40 linear IgA dermatosis 46 mucous membrane pemphigoid 32 mycosis fungoides 880 systemic lupus erythematosus 57 histopathology 41 3 epithelial clefts clear cell basal cell carcinoma 595 solid basal cell carcinoma 592 epithelioid cells melanocytoma 817, 818, 819 melanoma 826, 827, epithelioma calcifying (see pilomatricoma) intracutaneous cornifying (see infundibular keratinizing acanthoma) see also sebaceous epithelioma epitheliotropism, cutaneous histiocytoma 841 epitope spreading 33, 53 epitrichial adenocarcinoma see apocrine secretory adenocarcinoma epitrichial sweat gland adenoma see apocrine secretory adenoma Erisipelothrix rhusopathiae, septic vasculitis 238 erythema ab igne (chronic moderate heat dermatitis, chronic radiant heat dermatitis) 63 5 clinical features 63 4 histopathology 64 5 erythema multiforme 65 8, 75 6, 77, 78 clawbed 72 clinical features 65 7 discoid lupus erythematosus 55 epitheliotropic lymphoma 877 exfoliative cutaneous lupus erythematosus of German Shorthaired Pointer feline thymoma-associated exfoliative dermatitis 69 70, 79 lupoid onychitis 72 pagetoid reticulosis paraneoplastic pemphigus 37 pemphigus foliaceus 18 sebaceous gland dysplasia 535 systemic lupus erythematosus 57 toxic epidermal necrolysis 81, 82 3 toxic shock syndrome 85 vesicular cutaneous lupus erythematosus of Shetland Sheepdog and Collie 62 drug-induced 66 Escherichia coli otitis media 76, 77 follicular 76, 77 granulomatous mural folliculitis in dogs 476 histology 67 8, 75 6, 77, 78 hyperkeratotic 75 6, 89 proliferative necrotizing otitis of kittens 80 Langerhans cells 880, 882 lymphocytes 880 viral triggers 66 erythroderma, exfoliative 877 erythrophagocytosis, cutaneous 321, 323 Escherichia coli deep bacterial folliculitis and furunculosis 420 otitis media in erythema multiforme 76, 77 postgrooming furunculosis 427 estrogen supplementation, female hyperestrogenism 492 eumycotic mycetoma exfoliative toxins, staphylococcal 4, 6 eyelid margins, focal/multifocal lesions cutaneous xanthoma 333 facial dermatitis of Persian and Himalayan cats clinical features histopathology fat necrosis, pancreatic panniculitis 557 feline immunodeficiency virus (FIV) bowenoid in situ carcinoma 579 feline dermatophytosis feline follicular demodicosis 447, 448 Malassezia dermatitis association 143 mast cell tumor association 858 feline leukemia virus (FeLV) bowenoid in situ carcinoma 579 cutaneous horn of feline pawpad association 562 feline dermatophytosis feline follicular demodicosis 447, 448 feline uveal melanoma 813 giant cell dermatomosis lymphoma 866 Malassezia dermatitis association 143 vaccine-induced sarcoma 797 feline sarcoma virus (FeSV) feline uveal melanoma 813 fibrosarcoma 722 3, 724 liposarcoma 772 fibrin deposition, solar vasculopathy 258 fibrinoid degeneration cell poor vasculitis 248 proliferative thrombovascular necrosis of the pinnae 254 vasculitic panniculitis of thermal burns 547 fibrinoid vasculopathy, discoid lupus erythematosus association 264 fibroadnexal hamartoma (fibroadnexal dysplasia, focal adnexal dysplasia) clinical features 606 follicular hamartoma 605 sebaceous hamartoma 643 trichofolliculoma 616 histopathology fibroblast growth factor, angiomatosis 735 fibroblasts Mycobacterium avium complex 287 myxosarcoma 729 fibrocytes, mucinosis 382 fibroepithelial polyp see acrochordon fibrohistiocytic nodules, reactive (benign fibrous histiocytoma, juvenile xanthogranuloma, fibroxanthoma) clinical features 837

12 906 Index arthropod bite reactions 345 canine leproid granuloma 283 palisading granuloma histopathology 838 9, 840 immunohistochemistry fibrolipoma 767, atypical lipoma 773 fibroma clinical features 719 benign peripheral nerve sheath tumor 791, 792 canine keloidal fibroma 722 canine nodular dermatofibrosis 712 collagenous hamartoma 711 dermatofibroma 717 fibropruritic nodules 140 leiomyoma 779 histopathology keloidal (see keloidal fibroma, canine) subcutaneous clinical features 719 histopathology fibromatous plaque see acrochordonous plaque fibromatous polyp see acrochordon fibropapilloma see sarcoid, feline fibroplasia, follicular cyst 609 fibropruritic nodules clinical features histopathology fibrosarcoma clinical features 723 anaplastic sarcoma with giant cells 809, 810 angiosarcoma 755 benign peripheral nerve sheath tumor 791, 792 feline sarcoid 730 hemangiopericytoma 764 histiocytic sarcoma 850, 851 leiomyosarcoma 780 malignant peripheral nerve sheath tumor 794 nodular fasciitis pleomorphic leiomyosarcoma 782 rhabdomyosarcoma 784 spindle cell lipoma 771 spindle cell melanoma 830, 832 follicular papillary origin histopathology immunohistochemistry 727 myofibroblastic hemangiopericytoma 764 recurrence rate 723 vaccine-associated 799 well-differentiated dermatofibroma 717 see also keloidal fibrosarcoma fibrosis acral lick dermatitis 429 alopecia areata 462 calcinosis cutis 376, 379 canine eosinophilic granuloma 360 cutaneous xanthoma 331 deep bacterial folliculitis and furunculosis 423 foreign body reactions 336, 337 juvenile sterile granulomatous dermatitis and lymphadenitis 329 laminar in post-traumatic alopecia 506 metatarsal fistulation of German Shepherd Dog 555 subepidermal laminar superficial bacterial folliculitis 409 topical corticosteroid reaction 394 traumatic panniculitis 546 fibrous histiocytoma, benign see fibrohistiocytic nodules, reactive fibroxanthoma see fibrohistiocytic nodules, reactive fire ant bites clinical features arthropod bite reactions 345 histopathology fistula formation, foreign body reactions 337 Fite s stain 275, 282 for mycobacterial opportunistic infection 286 flame follicles 480, 610 alopecia X canine eosinophilic granuloma 360 canine follicular dysplasia 525 canine mast cell tumors 855 feline eosinophilic granuloma 356, 358 female hyperestrogenism 494 hyperglucocorticoidism 486 hypothyroidism 483 Sertoli cell tumor-associated skin disease 491 flank alopecia see alopecia, cyclical flank flea allergy dermatitis (FAD, flea bite hypersensitivity, flea bite dermatitis) 109, , 212 clinical features atopic dermatitis 203 food allergy 207, 208 hookworm dermatitis 229 sarcoptic acariasis 217, 219 feline allergic miliary dermatitis 118 feline indolent ulcer association 128 fibropruritic nodule 138, 139 German Shepherd Dog 138 German Shepherd Dog pyoderma 425 Golden Retriever 138 histopathology , 212 hyperplastic dermatosis of West Highland White Terriers 147 pyotraumatic dermatitis association 116 flies black stable 342 fly-strike 342, 344, 345 focal adnexal dysplasia see fibroadnexal hamartoma follicular atrophy canine ischemic dermatopathy 505 postrabies vaccination panniculitis 541 ischemic 509 postinjection panniculitis 542 sterile abscess of repositol injection 545 follicular cyst clinical features 608 sebaceous duct cyst 641 histopathology follicular dysplasia, canine (hair follicle dysplasia) clinical features black hair follicular dysplasia 522

13 Index 907 color dilution alopecia 522 congenital hypotrichosis 530 histopathology follicular dysplasia of the Siberian Husky 522, 523, 525 alopecia X 497 follicular epaulettes, seborrhea follicular hamartoma 605 fibroadnexal hamartoma 607 follicular infundibula bridging 423 follicular infundibular cyst, dermoid cyst 566 dilated pore 612 follicular keratosis ear margin seborrhea 168 feline follicular demodicosis 448 interdigital furunculosis 432 traction alopecia 508 vitamin A-responsive dermatosis 166 follicular lipidosis clinical features 530 histopathology 531 follicular melanin unit 822 follicular mucinosis see mucinosis, follicular follicular parakeratosis, congenital clinical features acrodermatitis of Bull Terriers 196 inflamed linear epidermal nevus 192 histopathology follicular parakeratosis, inflamed linear epidermal nevus 192, 193 follicular plugging sebaceous adenitis 188 vitamin A-responsive dermatosis 166 follicular stem cell carcinoma 681 follicular stem cells 604 folliculettes, dermoid cyst 566 folliculitis canine demodicosis 444 foreign body reactions 337 congenital hypotrichosis 529 eosinophilic 208 feline allergic miliary dermatitis 211 foreign body reactions 336 with impetigo 4, 6 luminal 408 feline follicular demodicosis 449 dermatophyte mural folliculitis 465 neutrophilic in canine dermatophytosis 414 Pelodera dermatitis 450 pemphigus foliaceus 416 pustular mural folliculitis 466 with superficial pustular dermatophytosis 13 Schnauzer comedo syndrome 182 superficial perforating with superficial spreading pyoderma 7 see also acne, canine; bacterial folliculitis and furunculosis, deep; mural folliculitis folliculosebaceous hamartoma dermoid cyst food see generic dog food dermatosis food allergy (adverse food reactions, food hypersensitivity, food intolerance) 109, angioedema 240 clinical features epitheliotropic lymphoma 877 feline eosinophilic granuloma 357 feline eosinophilic plaque 353 feline mosquito bite sensitivity 345, 347 flea allergy dermatitis 210, 211 hookworm dermatitis 229 mural folliculitis 466 notoedric acariasis 219 sarcoptic acariasis 217, 219 sebaceous adenitis 457 feline allergic miliary dermatitis 118, 119, 211 feline indolent ulcer association 128 German Shepherd Dog pyoderma 425 histopathology hyperplastic dermatosis of West Highland White Terriers 147 urticaria 240 foreign body implantation actinomycosis 273, 274 nocardiosis 274 foreign body reactions (foreign body granuloma) acral lick dermatitis association 429 clinical features actinomycosis 275 blastomycosis 295 coccidioidomycosis 295 entomophthoromycosis 309 histoplasmosis 295 lagenidiosis 309 metatarsal fistulation of German Shepherd Dog 555 mycobacterial opportunistic infection 280 Nocardia 275 postinjection panniculitis 542 pythiosis 309 spider bites 348 deep bacterial folliculitis and furunculosis 422 follicular cyst rupture 609 histopathology interdigital furunculosis 432 penetrating 336 trichoepithelioma 618 Fox Terrier familial cutaneous vasculopathy 50 superficial pustular dermatophytosis 12 Foxhounds, leishmaniasis 314 foxtail foreign body penetration 273, 336 fungal infection feline acne 440 metatarsal fistulation of German Shepherd Dog 555 keratinophilic 410 opportunistic clinical features cutaneous xanthoma 332 dermatophytic pseudomycetoma 291 feline leprosy syndrome sterile granuloma and pyogranuloma syndrome 323 histopathology 303

14 908 Index saprophytic foreign body reactions 337 secondary chronic hyperplastic dermatitis 136, 137 facial dermatitis of Persian and Himalayan cats 114 feline thymoma-associated exfoliative dermatitis 69, 79 lupoid onychitis 71 superficial necrolytic dermatitis 88, 91 see also Malassezia dermatitis furuncles eosinophilic 418 postgrooming furunculosis 428 furunculosis actinic 150, 184, clinical features canine acne interdigital furunculosis 432 deep bacterial folliculitis and furunculosis 420 histopathology solar elastosis and fibrosis association 399 canine demodicosis 444, 445 canine dermatophytosis 414 foreign body reactions 337 pemphigus foliaceus 416 foreign body reactions 336 interdigital (pedal folliculitis and furunculosis, interdigital pyoderma) 420, 423, clinical features acral lick dermatitis 429 actinic furunculosis 431 callus pyoderma 435 canine acne histopathology metatarsal fistulation of German Shepherd Dog 554 Pelodera dermatitis 450 pemphigus foliaceus 416 postgrooming 420, 423, clinical features acral lick dermatitis 429 histopathology pyogranulomatous with superficial pustular dermatophytosis 13 Schnauzer comedo syndrome 182 traumatic 140, 142, 420, 423 acral lick dermatitis association 429 callus pyoderma 433 canine acne 436 see also acne, canine; bacterial folliculitis and furunculosis, deep; eosinophilic furunculosis ganglion ganglion cells in melanoma 826 generic dog food dermatosis 91 2, 93 clinical features 91 2 acrodermatitis of Bull Terriers 194, 196 superficial necrolytic dermatitis 91 zinc-responsive dermatosis 189, 191 histopathology 92, 93 German Shepherd Dog alopecia areata aspergillosis 302 calcinosis circumscripta 379 canine eosinophilic granuloma 359 canine nodular dermatofibrosis 711, 712, 713 discoid lupus erythematosus 53 eosinophilic furunculosis of the face 452 familial cutaneous vasculopathy 50 fibropruritic nodules 138 hemorrhagic bullae 421 lupoid onychitis 71 mucocutaneous pyoderma 262 mucous membrane pemphigoid 31 pemphigus erythematosus 18 pemphigus vulgaris 34 perianal gland carcinoma 659 pyotraumatic dermatitis 116 pythiosis 305 see also metatarsal fistulation of German Shepherd Dog; vasculopathy, cutaneous familial of German Shepherd Dogs German Shepherd Dog pyoderma clinical features histopathology 426 ghost cells hybrid cysts 612 matrical cyst 611 pilomatricoma 625 trichoepithelioma 617, 618 giant cell(s) amyloidosis 385 anaplastic sarcoma with giant cells calcinosis cutis 376 cutaneous xanthoma 331, 332 deep bacterial folliculitis and furunculosis 422 feline eosinophilic granuloma 356, 357 feline leprosy syndrome 279, 280 feline pansteatitis 553 fibrosarcoma 723 fungal opportunistic infections 303 granulomatous mural folliculitis in dogs 475 histiocytic sarcoma 848, 850 lagenidiosis leiomyosarcoma 781 melanoma 826 Mycobacterium avium complex 287 palisading granuloma 339 pleomorphic liposarcoma 775, 776 postinjection panniculitis 542 rhabdomyosarcoma 784 vaccine-induced sarcoma 798, 799 giant cell dermatosis in FeLV-positive cats clinical features histopathology giant cell tumor of soft tissue see sarcoma, anaplastic with giant cells Giemsa stain, leishmaniasis 316 glomerulonephritis, immune-mediated 364 glomus tumors clinical features 759 plasmacytoma 871, 872 histopathology immunohistochemistry 762 intravascular 762 round cell Merkel cell tumor 788, 789 spindle cell angioleiomyosarcoma 781, 782

15 Index 909 glucagon, superficial necrolytic dermatitis 87 glucocorticoid excess diseases Schnauzer comedo syndrome 182 glycosaminoglycans 381 gnat, buffalo Golden Retriever fibropruritic nodules 138 histiocytic sarcoma 849 juvenile sterile granulomatous dermatitis and lymphadenitis 328 kerion 440 pyotraumatic dermatitis 116 sebaceous gland hyperplasia 531 Gomori s methenamine silver stain 295 dermatophytic pseudomycetoma fungal opportunistic infections 303 protothecosis 312 pythiosis 307 graft-versus-host disease feline thymomaassociated exfoliative dermatitis 70, 79 granular cell tumor (granular cell myoblastoma, granular cell schwannoma) clinical features 805 granular cell type trichoblastoma 633 histopathology immunohistochemistry 806 granular degeneration, linear epidermal hamartoma 565 granulation tissue, granulation tissue-type hemangioma nodular fasciitis granulation tissue-type hemangioma 741, 742, acrochordon 715 angiomatosis secondary to lymphedema 740 granuloma arthropod bite 343, 344 bacterial (see bacterial pseudomycetoma) blastomycosis 294 canine sarcoidosis 334 cell poor vasculitis 249, 250 coccidioidomycosis 294 postrabies vaccination panniculitis 541 cutaneous dirofilariasis 227, 228 cutaneous xanthoma 332 deep bacterial folliculitis and furunculosis 422 foreign body acral lick dermatitis association 429 callus pyoderma 435 interdigital furunculosis 432 reactions 337 histoplasmosis 294 insect bite (see arthropod bite reactions) kerion 441 leishmaniasis 315 linear Mycobacterium avium complex 287 palisading clinical features 337 arthropod bite reactions 345 canine leproid granuloma 283 familial cutaneous vasculopathy of German Shepherd Dogs 365 histopathology parafollicular in canine demodicosis 444, 446 postinjection panniculitis 542 sterile, arthropod bite reactions 345 canine leproid granuloma 283 feline leprosy syndrome 280 juvenile sterile granulomatous dermatitis and lymphadenitis 329 leishmaniasis 316 palisading granuloma Vogt Koyanagi Harada-like syndrome 268 tubular with Mycobacterium avium complex 287 see also callus; keratogranuloma; leproid granuloma, canine; sterile granuloma and pyogranuloma syndrome; trichogranuloma granulomatous dermatitis and lymphadenitis, juvenile sterile 551 granulomatous diseases of dermis infectious reactive histiocytosis 327 noninfectious granulomatous inflammation in feline pansteatitis 553 grass awns 336 Great Danes cryptococcosis 296 epidermolysis bullosa acquisita 41 Grenz zone 730, 819, 848, 859 cutaneous lymphocytosis 873 nonepitheliotropic lymphoma 883 plasmacytoma 868 Greyhound Italian and acquired pattern alopecia 502 pawpad keratoma 563, 564 grooming see furunculosis, postgrooming grooming devices, traction alopecia 508 gynecomastia, female hyperestrogenism 493 Hailey Hailey disease see Darier s disease, canine hair bulb 604 hair follicles acquired pattern alopecia alopecia areata anagen phase in follicular lipidosis 531 canine ischemic dermatopathy 504 congenital hypotrichosis 529 cystic in fibroadnexal hamartoma degenerative mucinotic mural folliculitis in cats 474 dermoid cyst 566 epitheliotropic lymphoma 878 external root sheath mineralization 376, 377 feline acquired skin fragility syndrome 390 feline dermatophytosis 412 granulomatous mural folliculitis in dogs 476 hyperglucocorticoidism 485 mural diseases post-traumatic alopecia 506 pseudopelade regressing 480 sebaceous nevus 644 structure 604 topical corticosteroid reaction 394 traction alopecia 508 trichofolliculoma 615 see also follicular entries