同: 松果体細胞腫

WordNet

tumor of the pineal gland

Wikipedia preview

出典(authority):フリー百科事典『ウィキペディア（Wikipedia）』「2014/04/02 13:21:42」(JST)

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Pineocytoma, also known as a pinealocytoma, is a benign, slowly growing tumor of the pineal gland. Unlike the similar condition pineal gland cyst, it is uncommon.

Diagnosis[edit]

Pineocytomas are diagnosed from tissue, i.e. a brain biopsy.

They consist of:

cytologically benign cells (with nuclei of uniform size, regular nuclear membranes, and light chromatin) and,
have the characteristic pineocytomatous/neurocytic rosettes, which is an irregular circular/flower-like arrangement of cells with a large meshwork of fibers (neuropil) at the centre.^[1]

Pineocytomatous/neurocytic rosettes are superficially similar to Homer-Wright rosettes; however, they differ from Homer-Wright rosettes as they have (1) more neuropil at centre of the rosette and, (2) the edge of neuropil meshwork irregular/undulating.

References[edit]

^ Wippold FJ, Perry A (March 2006). "Neuropathology for the neuroradiologist: rosettes and pseudorosettes". AJNR Am J Neuroradiol 27 (3): 488–92. PMID 16551982.

UpToDate Contents

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1. 松果体部腫瘍 pineal gland masses
2. 脳腫瘍の臨床所見および診断 clinical presentation and diagnosis of brain tumors

English Journal

Third ventricular meningiomas.

Li P1, Diao X2, Bi Z3, Hao S3, Ren X3, Zhang J4, Xing J5.
Journal of clinical neuroscience : official journal of the Neurosurgical Society of Australasia.J Clin Neurosci.2015 Nov;22(11):1776-84. doi: 10.1016/j.jocn.2015.05.025. Epub 2015 Aug 29.
We report 13 patients with third ventricular meningiomas (TVM) and discuss the clinical, radiological, pathological and surgical features, as well as follow-up of these tumors. TVM are rare intracranial tumors, and because of this, there are few reports in the literature. Of 11,600 intracranial meni
PMID 26455422

Pineal parenchymal tumor of intermediate differentiation.

Patil M1, Karandikar M.
Indian journal of pathology & microbiology.Indian J Pathol Microbiol.2015 Oct-Dec;58(4):540-2. doi: 10.4103/0377-4929.168854.
The 2007 World Health Organization classification of tumors of the central nervous system identified "pineal parenchymal tumor of intermediate differentiation" (PPTID) as a new pineal parenchymal neoplasm, located between pineocytoma and pineoblastoma as grade II or III. Because of the small number
PMID 26549088

Upfront Stereotactic Radiosurgery for Pineal Parenchymal Tumors in Adults.

Park JH1, Kim JH1, Kwon DH1, Kim CJ1, Khang SK2, Cho YH1.
Journal of Korean Neurosurgical Society.J Korean Neurosurg Soc.2015 Oct;58(4):334-340. Epub 2015 Oct 30.
OBJECTIVE: Pineal parenchymal tumors (PPTs) in adults are rare, and knowledge regarding their optimal management and treatment outcome is limited. Herein, we present the clinical results of our series of PPTs other than pineoblastomas managed by stereotactic radiosurgery (SRS) at upfront setting.MET
PMID 26587186