CASE
HISTORY/CLINIC:
62-year-old female with chronic stabbing pains in the left supply area of the
trigeminus nerve.
FINDINGS:
Extra-axial mass lesion with dumbbell-shaped swelling of the gasserian ganglion
and of the fifth cranial nerve. The lesion is almost homogeneously
hyperintense on
T2-w, isointense on
T1-w and enhances
strongly homogeneously after contrast administration. Consecutive circumscribed displacement of
the left temporal lobe.
Normal appearance of the auditory
meatus.
DIAGNOSIS:
Schwannoma
of the trigeminal nerve
DIFFERENTIAL DIAGNOSIS:
Other parasellar tumors (meningeoma, glossopharyngoschwannoma)