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Pineocytoma Associated with a Cyst:Report of a case Masayuki NAKAJIMA 1 , Minoru KIDOOKA 1 , Masaharu KANEKO 1 , Satoshi NAKASU 2 , Jyoji HANDA 2 1Division of Neurosurgery, 2nd Okamoto Hospital 2Department of Neurosurgery, Shiga University of Medical Science Keyword: Pineocytoma , Cyst , MRI , Immunohistochemistry pp.911-915
Published Date 1995/10/10
DOI https://doi.org/10.11477/mf.1436901097
  • Abstract
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We report a case of pineocytoma associated with an unusually large cyst. A 15-year-old boy was admitted with a complaint of intermittent headache. Neurological examination was normal except for bilateral papil-ledema. CT scan showed triventricular hydrocephalus and a large mass. A solid portion of the tumor in the pineal and retrothalamic areas was isodense, and con-tained massive calcification on CT. A huge cystic por-tion extended far into the infratentorial, supracellebellar area. On MR, the solid tumor showed isointensity on TI-WI and iso-to high intensity on T2-WI, and was en-hanced by Gd-DTPA.

After a ventriculo-peritoneal shunt, the tumor was partially removed through an occipital supratentorial approach. Histological examination revealed a pineocy-toma with neuronal and astrocytic differentiations. Re-viewing the literature, it is most unusual to find a pineocytoma associated with a huge cyst as was seen in this case.


Copyright © 1995, Igaku-Shoin Ltd. All rights reserved.

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電子版ISSN 1882-1251 印刷版ISSN 0301-2603 医学書院

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