Ocular Neoplasia CL Davis 9/08. Richard R Dubielzig
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1 Ocular Neoplasia CL Davis 9/08 Richard R Dubielzig
2 2135/5722 Canine Melanocytic Tumors Outside the Globe: 264 Conjunctival: 159 Eye Lid: 72 Skin: 33 Affecting the Globe: 1871 Anterior Uveal Melanocytoma: 1245 Anterior Uveal Malignant Melanoma: 312 Limbal Melanocytoma: 213 Choroidal: 86 Melanocytoma and 11 malignant Melanoma Metastatic Melanoma: 15
3 Anterior Uveal Melanocytoma 1245 Cases Many cases are arising from within ocular melanosis or heavily pigmented globes
4 Canine Anterior Uveal Melanocytoma
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8 Limbal (Epibulbar) Melanocytoma 213 Cases German Shepherds are over-represented
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11 Typical Limbal Melanocytoma Atypical
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13 Anterior Uveal Malignant Melanoma 312 Cases Many Cases are Arising from Melanocytoma or Melanosis
14 Malignant Uveal Melanoma
15 Malignant Uveal Melanoma
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20 Choroidal Melanocytic Tumors 86 Benign & 11 Malignant
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27 Conjunctival Melanoma 159 cases Most are malignant by morphologic criteria Most recur elsewhere on the conjunctiva when removed They seldom metastasize Those on the palpebral conjunctiva are more likely to metastasize
28 Conjunctival Melanoma
29 Conjunctival Melanoma
30 Conjunctival Melanoma
31 Conjunctival Melanoma
32 Feline Melanocytic Ocular Tumors: 2766 Melanoma: 1510 Diffuse Iris Melanoma (263 Early) Atypical 27 Limbal 46 Conjunctival mostly DIM improperly labeled
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42 Metastatic Potential of Feline Diffuse Iris Melanoma
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45 Early Stages of Feline Diffuse Iris Melanoma Early Melanoma Melanosis
46 Melanosis
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48 Early FDIM Tumor confined to the iris
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50 Feline Atypical Melanoma
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52 Feline Atypical Melanoma
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55 Canine Iridociliary Epithelial Tumors 717 Cases 116 are Adenocarcinoma 10 Cases of Malignant Adenocarcinoma with features of Pleomorphic Adenocarcinoma
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62 PIFM Asteroid Hyalosis
63 Immunohistochemistry of Canine Iridociliary Epithelial Tumors Vimentin+ Cytokeratin- (Malignant tumors tend to become +) S100+
64 Cytokeratin Vimentin
65 Malignant Variant of Iridociliary Epithelial Tumor (Pleomorphic Adenocarcinoma)
66 Malignant Variant of Iridociliary Epithelial Tumor (Pleomorphic Adenocarcinoma)
67 Malignant Variant of Iridociliary Epithelial Tumor (Pleomorphic Adenocarcinoma) Cytokeratin Vimentin
68 Feline Iridociliary Epithelial Tumors 102/2766 neoplastic cases Tend to be non-pigmented Solid Cavitated About half have metaplastic bone Vimentin+, Cytokeratin-
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75 Tumors of Primitive Neurectoderm Medulloepithelioma Canine...19 cases Equine 3 cases Retinoblastoma Human Canine
76 Equine Canine Canine
77 Equine Equine Canine Canine
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79 Equine Medulloepithelioma
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84 Canine Retinoblastoma?? Human Canine Canine
85 Canine Optic Nerve Glioma 8 cases
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87 GFAP
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89 Feline Post-traumatic Sarcoma 234/2766 Spindle cell variant 149 cases Lens epithelial origin Round cell variant 54 cases Variant of lymphoma Osteosarcoma/Chondrosarcoma 26 OSA/5 Chondrosarcoma cases Unknown cell of origin
90 Reasons to believe PTS is related to trauma Lens capsule rupture History of trauma or abnormal eye Time between trauma and tumor Between 2 months and 15 years
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92 Early Spindle Cell Variant PTS
93 Tumor Distribution Spindle Cell Variant Spindle Cell PTS with
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96 Cellular Features of Spindle Cell PTS Collagen 4 Vimentin αa Crystallin
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98 Follow-up Spindle Cell Variant Cases which have extended beyond the sclera have a bad prognosis Local recurrence Extension towards the brain Cases removed within the sclera have a good prognosis 8% of traumatized globes removed prophylactically have early PTS
99 Round Cell Variant PTS
100 Round Cell Variant PTS Round Cell PTS
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104 Feline PTS Osteosarcoma
105 Spindle Cell Tumors of Blue Eyed Dogs 46 Cases
106 Blue Brown
107 Spindle Cell Tumor of Blue Eyed Dogs 11 Cases Median age=8.3 years (Range=4.5-12years) Gender equal Laterality equal Siberian Huskies, Australian Shepherd, Border Collie and other breeds with blue or partly blue eye
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109 Spindle Cell Tumor of Blue Eyed Dogs
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114 GFAP
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116 Distribution of GFAP+ Cells in the Uvea of Blue Eyed Dogs
117 Distribution of GFAP+ Cells in the Uvea of Pigmented Dog Eyes
118 Canine Corneal Squamous Cell Carcinoma 20 cases in COPLOW All have Chronic Superficial Keratitis Most treated with Cyclosporin or Tacrolimus
119 Canine Corneal Squamous Cell Carcinoma
120 Equine Stromal-Invasive SCC
121 Spindle Cell Tumors of the Feline Eyelid 23/2078 Cases
122 Spindle Cell Tumor of the Feline Eyelid
123 S100
124 Canine Orbital Meningioma 60/4100 Cases
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131 Canine Orbital Lobular Adenoma 32 Cases Swollen lids, protruding nictitans, conjunctival mass, exophthalmia Recurrence in 10 of days Multiple recurrences are common
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133 Canine Orbital Lobular Adenoma
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136 Clinical Presentation Swollen eye lids 5 cases Protrusion of the nictitans. 3 cases Retrobulbar masses 2 cases Exophthalmia.5 cases Resistance to retropulsion..2 cases Strabismus..1 case
137 10/13 cases with follow-up had at least one recurrence Case days Case d & 1300d (bilateral) Case d Case 6 365d & 515d & 995d (bilateral) Case 7.600d Case 8.Multiple (unknown periods) Case d Case d Case d Case d & 565d Cases 2, 4, & 9 euthanized prior to recurrence Cases 11 & 12 lost to follow-up
138 Canine Ocular Metastatic Tumors Anterior Posterior Both Total Unknown Neoplasm Epithelial Neoplasia Sarcoma Hemangiosarcoma Lymphosarcoma Histiocytic sarcoma Osteosarcoma Melanoma Spindle cell tumor
139 Typical Appearance of Canine Metastatic Tumor
140 Histiocytic Sarcoma: Retrievers & Rottweilers
141 Histiocytic Sarcoma CD18
142 Feline Ocular Metastatic Tumors Total : 41 Anterior Posterior Both Total Carcinoma Non-lining, non-angioinvasive Lining Angioinvasive Lining and angioinvasive Sarcoma Lymphoma Lymphoma/Uveitis
143 Feline Metastatic Epithelial Tumor: Lining Pattern
144 Feline Metastatic Epithelial Tumors: Angioinvasive Pattern
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Ocular Neoplasia What s Common? What s New? Richard R Dubielzig
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