Endoscopic Endonasal Surgery (A toZ)

Where is the vidian canal relative to the foramen rotundum?

• Anterio-superiorly

• infero-medially

• posterio-superiorly

• superio-medially

What is the main corridor of transpterigoid approach?

• Bulla ethmoidalis

• Maxillary Sinus

• Sphenoid Sinus

• Pterigoid Fossa

What is essential thing in endoscopic endonasal skull base procedure?

• To develop surgical skill

• To develop stepwise learning process

• To develop Update knowledge

• To practice more on dummy

First landmark for endoscopic endonasal surgery?

• Inferior turbinate

• Middle turbinate

• Sphenoid Ostium

• Choana

Which one of the following cases of olfactory groove meningioma can be dealt best through endoscopic endonasal transcribriform approach?

(AP - antero-posterior)

• AP size 55 mm, laterally extending beyond the medial margins of both orbits, olfaction preserved.

• AP size 50 mm, laterally extending just medial to medial margin of left orbit, olfaction lost.

• AP size 35 mm, laterally extending upto medial margins of both orbit, olfaction lost.

• AP size 37 mm, laterally extending upto medial margins of both orbits, olfaction preserved.

Lateral limit of endoscopic trans-ethmoidal surgery?

• Anterior ethmoidal cell

• Posterior ethmoidal cell

• Lamina papyracea

• Posterior wall of frontal sinus

Pitutary transposition is useful in reaching-

• Suprasellar space

• Retro-infundibular space

• Pre-chiasmal space

• Pre-pontine cistern

which artery we coagulate during pitutary transposition surgery?

• sphenopalatine artery

• posterior septal branch

• superior hypophyseal artery

• inferior hypophyseal artery

lateral wall of cavernous sinus faces towards the....?

• basal cistern

• medial temporal lobe

• upper part of posterior fossa

• pre-chiasmatic space

which structures we encounter during endoscopic procedure as the second pass ?

• inferior meatus

• nasolacrimal duct

• middle meatus

• frontal recess