{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,3,15]],"date-time":"2026-03-15T15:48:01Z","timestamp":1773589681086,"version":"3.50.1"},"reference-count":23,"publisher":"Journal of Neurosurgery Publishing Group (JNSPG)","issue":"1","content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":[],"published-print":{"date-parts":[[1999,1]]},"abstract":"<jats:p content-type=\"fine-print\">\u2713 The authors report the case of a peripheral primitive neuroectodermal tumor (PNET) arising in the tentorium in a 5-year-old boy who presented with frequent vomiting and mild palsy of the left abducent nerve. Following complete surgical excision of the tumor via a transpetrosal approach, the patient has thus far been disease free for 7 years. The tumor tissue was composed of small cells with uniform round nuclei and minimal identifiable cytoplasm. Homer\u2014Wright rosettes were frequently observed. Immunohistochemical studies demonstrated a positive reaction to HBA-71, which recognizes the cell surface glycoprotein p30\/32, a product of the <jats:italic>MIC2<\/jats:italic> gene. Both the clinical and immunohistochemical characteristics of this tumor are consistent with a diagnosis of peripheral PNET, which is genetically distinct from the more common intracranial PNET.<\/jats:p>","DOI":"10.3171\/jns.1999.90.1.0141","type":"journal-article","created":{"date-parts":[[2009,5,13]],"date-time":"2009-05-13T17:26:30Z","timestamp":1242235590000},"page":"141-144","source":"Crossref","is-referenced-by-count":35,"title":["Peripheral-type primitive neuroectodermal tumor arising in the tentorium"],"prefix":"10.3171","volume":"90","author":[{"given":"Yoichi","family":"Katayama","sequence":"first","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Shigeyoshi","family":"Kimura","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Takao","family":"Watanabe","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Atsuo","family":"Yoshino","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Morimichi","family":"Koshinaga","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"1754","reference":[{"key":"b1","series-title":"Cancer","doi-asserted-by":"publisher","first-page":"1886","DOI":"10.1002\/1097-0142(19910401)67:7<1886::AID-CNCR2820670712>3.0.CO;2-U","article-title":"MIC2 is a specific marker for Ewing's sarcoma and peripheral primitive neuroectodermal tumors. 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