Third Ventricular Neuroepithelial Cyst Originating from the Massa Intermedia —Case Report—

Yukihiro WAKABAYASHI; Mitsuo ISONO; Shigeaki HORI; Kazunari OKA

doi:10.2176/nmc.38.90

Yukihiro WAKABAYASHI, Mitsuo ISONO, Shigeaki HORI, Kazunari OKA

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Keywords: neuroepithelial cyst, third ventricle, massa intermedia, neuroendoscope

JOURNAL FREE ACCESS

1998 Volume 38 Issue 2 Pages 90-94

DOI https://doi.org/10.2176/nmc.38.90

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Abstract

A 47-year-old female presented with a 3-year history of progressive emotional disturbance. Computed tomography and magnetic resonance imaging revealed a cyst in the third ventricle causing hydrocephalus. Endoscopic surgery found the cyst originated at the massa intermedia. Histological examination confirmed the diagnosis of neuroepithelial cyst. Neuroepithelial cyst originating from the massa intermedia may be due to persistence of neuroepithelial crest at this location.

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