Acoustic neuroma - intracanalicular
Left-sided hearing loss.
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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).
MRI features of a small enhancing intracanalicular mass most consistent with an acoustic neuroma.