A Resected Case of Recurrent Pulmonary Sclerosing Hemangioma.

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• A rare case of postoperative recurrence of pulmonary sclerosing hemangioma (PSH) is reported. A 41 year-old female was admitted because of a coin lesion in the left upper lung field on chest X-ray. A PSH was diagnosed by percutaneous fine needle biopsy (PNB). The hemangioma was resected, and no malignant pathological findings were recognized. After 2 years, a coin lesion reappeared at the same site and appeared to have grown. Since the same diagnosis was made by PNB, reoperation was performed. Histopathological findings of the initial and recurrent lesion both showed papillary hyperplasia and partial sclerosis. No malignant findings such as cell atypism or mitosis were seen. In the recurrent lesion, the sclerotic findings were less than in the initial tumor and many clear cells were observed. The immunohistochemical examination by monoclonal antibodies to keratin and surfactant apoprotein indicated differentiation into type II alveolar cells. These results were also supported by electron microscopic findings. This case was considered to provide helpful information for the clarification of the etiology of PSH.

• 特定非営利活動法人 日本肺癌学会の論文

特定非営利活動法人 日本肺癌学会 | 論文

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