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Anatomy Atlases: Illustrated Encyclopedia of Human Anatomic Variation: Opus V: Skeletal Systems: Variations in Sphenoidal Sinus

Illustrated Encyclopedia of Human Anatomic Variation: Opus V: Skeletal Systems

Variations in Sphenoidal Sinus

Ronald A. Bergman, PhD
Adel K. Afifi, MD, MS
Ryosuke Miyauchi, MD

Peer Review Status: Internally Peer Reviewed


A

1

Choanae

2

maxillary nerve

3

ophthalmic vein

4

abducens nerve

5

ophthalmic nerve

6

oculomotor nerve

7

trochlear nerve

8

ophthalmic artery

9

optic nerve

10

intersinus septum

11

optic canal

12

sphenoidal foramen

13

extension of sphenoidal sinus into anterior clinoid process

14

foramen rotundum

15

vidian canal

16

middle concha

17

inferior concha

B

Sphenoidal sinus anterior to the hypophysis.

1

Optic nerve

2

internal carotid artery

3

ridge formed by optic nerve

4

ridge formed by carotid artery

5

arrowindicates orifice of sinus

6

pituitary (sella turcic) fossa

7

basilar part of occipital bone

C

Large sphenoidal sinus anterior to and below the hypophysis

1

anterior clinoid process

2

optic foramen

3

pituitary fossa

4

nasal cavity

5

basilar part of occipital bone

6

ridge for optic nerve

7

infraorbital diverticulum

8

ridge for crotid artery

9

pterygoidal diverticulum running anteriorly in contact with the foramen rotundum, and extended posteriorly by an alar diverticulum coming almost up to the foramen ovale.

Redrawn from Testut, L. L. Testus et A. Latarjet Traité d'Anatomie HumaineG. Doin & Cie, Paris, 1948.

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