09-24-2007, 05:30 PM
A 59-year-old man complains of persistent headache. An MRA
(Magnetic Resonance Angiography) shows an aneurysm in the interpeduncular fossa (and cistern) arising from the basilar tip.
Which of the following cranial nerves would be most directly affected by this aneurysm?
(A) Abducens (VI)
(B) Oculomotor (III)
© Optic (II)
(D) Trigeminal, V1 (V)
(E) Trochlear (IV)
(Magnetic Resonance Angiography) shows an aneurysm in the interpeduncular fossa (and cistern) arising from the basilar tip.
Which of the following cranial nerves would be most directly affected by this aneurysm?
(A) Abducens (VI)
(B) Oculomotor (III)
© Optic (II)
(D) Trigeminal, V1 (V)
(E) Trochlear (IV)