Papers - akihide Tanimoto

Tetsuo Hamada, Akihide Tanimoto, Masanobu Kaido, Shigeru Matsumoto, Kaneshige Iribe, Osamu Koide .  Diffuse Pleural Rhabdomyosarcoma with Persistent Pleural Effusion .  Pathology International39 ( 12 ) 803 - 809   1989

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A unique case of embryonal rhabdomyosarcoma arising at the left pleura of a 7‐year‐old Japanese girl is reported. The present case was characterized by persistent pleural effusion, and the malignant cells incidentally found in it were the first diagnostic clue. The tumor showed a rare growth pattern involving diffuse thickening of the parietal pleura. Biopsy of the thickened parietal pleura upon thoracotomy revealed embryonal rhabdomyosarcoma largely composed of immature mesenchymal cells. Immunohistochemical demonstration of creatinine phos‐phokinase MM was most helpful among several types of immunostain for the histopathological diagnosis. Ultra‐structurally, thin filaments with primitive Z bands could be seen in some tumor cells. Intensive clinical examination revealed only diffuse thickening of the parietal pleura, which was reduced by chemotherapy. This is the first documented case of rhabdomyosarcoma arising at the pleura. Previous reports of rhabdomyosarcoma arising at unusual sites are reviewed and the histogenesis of this tumor is briefly discussed. Acta Pathol Jpn 39: 803 809, 1989. Copyright © 1989, Wiley Blackwell. All rights reserved

DOI： 10.1111/j.1440-1827.1989.tb02433.x

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