37-year-old male with history of left hemifacial spasm. Please assess left cerebellar pontine angle. There is a tiny 2-3 mm focus of enhancement located at the meatus of the left internal auditory canal. The remaining visualized portions of the left facial nerve appear unremarkable. There are no areas of restricted diffusion to suggest acute ischemia. There is asymmetric fat within the right petrous apex. The ventricular configuration is normal. Normal intracranial vascular flow voids are present. There is a small retention cyst located within the anterior aspect of the left maxillary sinus. The mastoid air cells are clear. The orbits are normal.
Tiny focus of enhancement located at the meatus of the left internal auditory canal may represent a looping vessel or possibly a small mass lesion. Dedicated internal auditory canal MRI is recommended for further evaluation.