Acoustic neuroma - intracanalicular

Case contributed by Ammar Haouimi
Diagnosis almost certain

Presentation

Left-sided hearing loss.

Patient Data

Age: 45 years
Gender: Male

There is a small well-defined left intracanalicular mass, isointense to the brainstem on T1, FLAIR, and T2 with a heterogeneous enhancement on postcontrast sequences. No significant widening of the internal acoustic canal (IAC).

Case Discussion

MRI features of a small enhancing intracanalicular mass most consistent with an acoustic neuroma.

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