Professor Dr.Muhammad Ajmal Dr.Tehmina Nazir. HOLY FAMILY HOSPITAL Rawalpindi

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1 Professor Dr.Muhammad Ajmal Dr.Tehmina Nazir HOLY FAMILY HOSPITAL Rawalpindi

2

3 SCHEME OF PRESENTATION PLAIN X-RAYS CT SCAN MRI CONCLUSION

4 IMAGING MODALITIES PLAIN X-RAYS CT SCAN MRI

5 OCCIPITOMENTAL/WATER S VIEW Maxillary and Frontal sinuses

6 ..OCCIPITOMENTAL VIEW

7 OCCIPITOFRONTAL/CALDWELL VIEW Frontal and ethmoid sinuses

8 .OCCIPITOFRONTAL VIEW

9 LATERAL VIEW

10 ..LATERAL VIEW

11 BASAL VIEW

12 IMAGING MODALITIES PLAIN X-RAYS CT SCAN MRI

13 CT AXIAL IMAGES Frontal sinus Orbital cavity Sphenoid bone

14 Globe Nasal cavity.ct AXIAL IMAGES Optic nerve Medial rectus Ethmoid sinuses Pituitary fossa Sphenoid sinus Dorsum sellae

15 Globe.CT AXIAL IMAGES Nasal septum Ethmoid sinuses Sphenoid sinus Clivus

16 Nasolacrimal duct Turbinate Zygomatic arch Septum.CT AXIAL IMAGES Maxillary sinus Mandibular condoyle

17 .CT AXIAL IMAGES Ground lamella Sphenoid recess

18 CT CORONAL IMAGES Anterior clinoid process Zygomatic arch Pterigoid plate Sphenoid sinus septum Nasopharynx Mandible

19 Sphenoid sinus Middle turbinate.ct CORONAL IMAGES Inferior turbinate Zygomatic arch Mandible

20 Orbit.CT CORONAL IMAGES Middle turbinate Ethmoid sinuses Zygomatic arch Inferior turbinate Mandible

21 Frontal bone Medial rectus Zygomatic arch Superior oblique muscle.ct CORONAL IMAGES Optic nerve Lateral rectus Inferior rectus Middle turbinate Inferior turbinate Hard palate

22 Frontal sinus.ct CORONAL IMAGES Frontal bone Globe Nasal septum Inferior turbinate Maxillary sinus

23 Frontal sinus.ct CORONAL IMAGES Nasal cavity Nasal bone Teeth

24 Superior turbinate.ct CORONAL IMAGES Ethmoid bulla Ethmoidal infundibulum Ethmoid bulla Middle turbinate Inferior turbinate Hiatus semilunaris Uncinate process

25 Frontal bone CT SAGITTAL IMAGES Orbit Maxillary sinus

26 Frontal sinus.ct SAGITTAL IMAGES Orbital cavity Optic nerve Inferior orbital fissure Maxillary sinus

27 .CT SAGITTAL IMAGES Frontal sinus Maxillary sinus Teeth

28 Frontal sinus Nasal bone.ct SAGITTAL IMAGES Ethmoid sinus Sphenoid sinus Inferior turbinate Hard palate

29 Frontal sinus.ct SAGITTAL IMAGES Hypophyseal fossa Nasopharynx Clivus Atlas;anterior arch Dens of axis

30 Frontal sinus.ct SAGITTAL IMAGES Ethmoids Sphenoid M.Turbinate I. Turbinate Clivus Hard palate

31 OSTIOMEATAL COMPLEX Most complex region in the lateral wall of the nasal cavity

32 ANATOMICAL VARIANTS ON CT HALLER CELLS

33 AGAR NASI CELLS.ANATOMICAL VARIANTS

34 .ANATOMICAL VARIANTS

35 .ANATOMICAL VARIANTS

36 ONODI CELL.ANATOMICAL VARIANTS

37 .ANATOMICAL VARIANTS

38 MISCELLENOUS ANATOMICAL VARIANTS Uncinate process anomalies Bilateral carotid artery protrusion into sphenoid sinus Supreme turbinate Paradoxical turbinate Accessory turbinates Absence of basal or ground lamella Suprabullbar recess

39 IMAGING MODALITIES PLAIN X-RAYS CT SCAN MRI

40 MRI T 1 AXIAL IMAGES Globe Right temporal lobe Basilar Artery Optic nerve Internal carotid artery Pons Fourth ventricle Vermis

41 Right orbotal cavity Right temporal lobe MRI T 1 AXIAL IMAGES Nasal septum Sphenoid sinus Internal carotid Aa Pons Trigeminal nerve Fourth ventricle

42 Right maxillary sinus Right temporal lobe MRI T 1 AXIAL IMAGES Left maxillary sinus Sphenoid sinus Pons Fourth ventricle

43 Right maxillary sinus Basilar artery Septum MRI T 1 AXIAL IMAGES Lateral cerebellomedullary cistern Medulla vermis Cerebellar hemisphere

44 Turbinate MRI T 1 AXIAL IMAGES Maxillary sinus Clivus Cerebellar peduncle Medulla Cerebellar tonsil

45 R maxillary sinus MRI T 1 AXIAL IMAGES L maxillary sinus Mandible Nasopharynx Cerebellopontine cistern Cerebellar hemisphere

46 MRI T1 SAGITTAL IMAGES Globe Left frontal gyri Maxillary sinus Transverse sinus Left temporal gyri Cerebellar hemisphere

47 Globe MRI T1 SAGITTAL IMAGES Lateral ventricle Maxillary sinus Occipitotemporal gyri Transverse sinus Cerebellar hemisphere

48 Globe MRI T1 SAGITTAL IMAGES Lateral ventricle Maxillary sinus Occipito-temporal gyri Tranaverse sinus Hippocampus Cerebelar hemisphere

49 Amygdale Optic nerve MRI T1 SAGITTAL IMAGES Lateral ventricle Globe Inferior rectus muscle Maxillary sinus Occipitotem[poral gyri Transverse sinus Cerebellar hemisphere Hippocampus

50 Lateral ventricle MRI T1 SAGITTAL IMAGES Parietooccipital fissure Maxillary sinus Transverse sinus Caudate nucleus Cerebellum Thalamus

51 Lateral ventricle MRI T1 SAGITTAL IMAGES Frontal sinus Parieto-occipital fissure Calcarine fissure Maxillary sinus Transverse sinus Cerebellum

52 Corpus callosum Singular gyrus Post-central gyrus MRI T1 SAGITTAL IMAGES Parieto-occipital fissure Calcarine fissure Precentral gyrus Cerebellar hemisphere

53 Singular gyrus Corpus callosum Pre-central gyrus MRI T1 SAGITTAL IMAGES Central sulcus Parieto-occipital fissure Calcarine fissure Post-central gyrus Superior sagital sinus Cerebellar hemisphere

54 MRI T 2 CORONAL IMAGES Inferior frontal gyrus Corpus callosum Middle frontal gyrus Inferior frontal gyrus Lateral Pterigoid muscle Lateral ventricle Temporal pole Medial pterigoid muscle

55 Superior frontal gyrus Middle F G Inferior FG Gyrus rectus Ethmoid Sinuses MRI T 2 CORONAL IMAGES Meningioma Optic nerve Temporal pole Lateral Pterigoid muscle Medial pterigoid muscle

56 Superior frontal gyrus Gyrus rectus Medial Orbital gyrus Mandible MRI T 2 CORONAL IMAGES Inferior FG Meningioma Temporal muscle Optic nerve Medial pterigoid muscle Masseter muscle

57 Superior FG MRI T 2 CORONAL IMAGES Middle frontal G Gyrus rectus Tyrbinate Inferior frontal gyrus Medial orbital G

58 Superior FG MRI T 2 CORONAL IMAGES Temporal muscle Medial Rectus muscle Masseter muscle Inferior turbinate

59 Superior frontal G Globe MRI T 2 CORONAL IMAGES Maxillary sinus Middle frontal G Mandible

60 CONCLUSION Anatomically paranasal sinuses are in close contact with:- Anterior cranial fossa Cribriform plate Internal carotid arteries Cavernous sinuses Orbits Optic nerves Radiologist must select most informative imaging modality

61

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