A case of solitary fibrous tumor of the pleura.

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  • 興味ある画像所見を呈した胸膜発生Ｓｏｌｉｔａｒｙ　Ｆｉｂｒｏｕｓ　Ｔｕｍｏｒの１例

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Abstract

A 59-year-old female was admitted to our hospital because of an enlarged abnormal shadow on chest roentgenogram. Chest roentgenogram revealed a wedge-shaped abnormal shadow in the left middle field. The mass slightly changed in position with the change in patient's position. A pedunculated tumor arose from the visceral pleura of left upper lobe. The tumor was completely resected through thoracotomy. Histologically, spindle and polymorphic tumor cells were scattered in the collagen fibers. Only a few atypical cells were recognized. An immunohistochemical study was positive for CD34, vimentin and negative for cytokeratin, calretinin and EMA. From these immunohistochemical staining findings and microscopic findings, the tumor was diagnosed as a solitary fibrous tumor. SFT should be kept in mind when preoperative images show a mobile tumor, even when it is a large tumor. Thoracic surgery is well indicated for this type of tumor.

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