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Papillary Tumor of the Pineal Region


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Title: Papillary Tumor of the Pineal Region
Authors: Kawahara, Ichiro / Tokunaga, Yoshiharu / Yagi, Nobuhiro / Iseki, Masachika / Abe, Kuniko / Hayashi, Tomayoshi
Issue Date: 15-Dec-2007
Publisher: The Japan Neurosurgical Society / 日本脳神経外科学会
Citation: Neurologia medico-chirurgica, 47(12), pp.568-571; 2007
Abstract: A 48-year-old female presented with an extremely rare primary tumor of the pineal region with papillary features manifesting as morning headaches persisting for 1 month. Magnetic resonance imaging showed a well-defined mass, with some cystic components, in the region of the pineal gland. The tumor was completely removed through an occipital transtentorial approach in the prone position. Histological examination found a distinctive papillary growth pattern in which the vessels were covered by multiple layers of tumor cells. The histological diagnosis was papillary tumor of the pineal region (PTPR), which has recently been described as a distinct clinicopathological entity requiring careful follow up because the prognosis is not well understood. Postoperatively, the patient has continued to do well, with no recurrence at the 8-month follow-up examination. PTPR should be considered in the differential diagnosis of pineal tumors. PTPR may have been frequently misinterpreted in the past as either ependymoma or choroid plexus papilloma due to the similar morphology.
Keywords: ependymoma / differential diagnosis / immunohistochemistry / papillary feature / pineal region
URI: http://hdl.handle.net/10069/23655
ISSN: 04708105
DOI: 10.2176/nmc.47.568
Relational Links: http://ci.nii.ac.jp/naid/110006532334/
Rights: 日本脳神経外科学会 / 本文データは学協会の許諾に基づきCiNiiから複製したものである
Type: Journal Article
Text Version: publisher
Appears in Collections:Articles in academic journal

Citable URI : http://hdl.handle.net/10069/23655

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