Intracanalicular acoustic schwannoma

Case contributed by Mohammad Taghi Niknejad
Diagnosis almost certain


Left hearing loss with dizziness recently.

Patient Data

Age: 40 years
Gender: Male

An 8 x 5 mm well-defined mass is seen arising from the intracanalicular portion of the left vestibulocochlear nerve. The lesion displays an isosignal on T1 and T2 with avid enhancement after contrast administration.

Case Discussion

Pathologically proven left intracanalicular acoustic schwannoma.

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