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We present a rare and interesting case of a cerebellopontine angle cyst containing ectopic choroid plexus tissue in a 26 year-old female. Surgical resection was performed, and histological examination confirmed the presence of choroid plexus in the cyst wall. This is the first reported case of ectopic choroid plexus at the cerebellopontine angle in an adult. We present the case and review the literature.

Original publication




Journal article


Acta Neurochir (Wien)

Publication Date





881 - 883


Adult, Arachnoid Cysts, Cerebellopontine Angle, Cerebrospinal Fluid Pressure, Choristoma, Choroid Plexus, Craniotomy, Decompression, Surgical, Encephalitis, Viral, Female, Hearing Loss, Sensorineural, Humans, Magnetic Resonance Imaging, Neurosurgical Procedures, Treatment Outcome, Vertigo, Vestibulocochlear Nerve