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ON AN AUTOPSY CASE OF THE PINEALOMA TREATED WITH IRRADIATION FOR FIVE YEARS Katsumaro OANA 1 , Kenro MORITA 1 , Takao MITSUNO 1 , Yoshihiko TERUI 2 1Dept. of Surgery, Iwate Medical Univ. School of Med. 22nd Dept. of Pathology Iwate Medical Unto. School of Med. pp.81-86
Published Date 1966/1/1
DOI https://doi.org/10.11477/mf.1406201980
  • Abstract
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Comparing with the incidence of teratoid and tera-tom of primarily intracranial origin, pure mesodermal mixed tumor is said to be extremely rare.

A case of mesodermal mixed tumor ascertained by operation was reported. This tumor showed malignant change in a part of it, sudden rapid growth and dis-semination of two daughter tumors.

21 aged man had complained of transient right sided hearing disturbance about one year before ad-mission.

Four months prior to admission, he suffered from visual disturbance and one month later symptoms of ncreased intracranial pressure appeared. Two months prior to admission, a nut sized tumor was able to be palpated over the scalp at the right temporal region, and these made him bring to our clinic. All these symptoms and signs coursed in one year.

It was proved by operation that a nut sized tumor protruded through the temporal bone was a part of a tennis ball sized tumor (40g) located intradurally under the temporal lobe. Two daughter tumors (each 10g) were extirpated. These tumors were solitary and had no communication with each other.

Histological examination revealed that it was an osteochondroma. The extradural part of the big tumor and two daughter tumors showed malignancy. These tumors were not considered as multicentric but that the big tumor had undergone malignant change and produced the dissemination of these daughter tumors.


Copyright © 1966, Igaku-Shoin Ltd. All rights reserved.

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電子版ISSN 2185-405X 印刷版ISSN 0006-8969 医学書院

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