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Abstract

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Article in Japanese

Case Report

Spontaneous regression of pleomorphic lung carcinoma

Yuusuke Muranishia  Yasuo Ueshimaa  Koichi Hasegawab  Shinsuke Shiotsub  Chieko Takumib  Noriya Hiraokab 

aDepartment of Respiratory Surgery, Japanese Red Cross Kyoto Daiichi Hospital
bDepartment of Internal Medicine, Japanese Red Cross Kyoto Daiichi Hospital

ABSTRACT

A 65-year-old man was referred to our hospital in July 2006 because of abnormality on his chest radiograph, and a CT scan revealed a 45-mm-diameter mass in the right S2. Transbronchial biopsy failed to detect any malignant findings in July, and a significant reduction in the size of the nodule, to 30 mm, was seen in August. Therefore he underwent a CT-fluoroscopic lung biopsy, and the tumor was cytologically confirmed to be a non-small cell lung cancer. A right upper lobectomy was performed by video-assisted thoracosurgery in September, and the tumor was histologically confirmed to be a pleomorphic carcinoma. Spontaneous regression of lung cancer is extremely rare, and only a few documented cases have been reported, of which none was of lung pleomorphic carcinoma. Nevertheless, we concluded that we had encountered spontaneous regression of pleomorphic lung carcinoma.

KEYWORDS

Pleomorphic carcinoma  Spontaneous regression 

Received 14 Nov 2011 / Accepted 22 Feb 2012

AJRS, 1(6): 498-501, 2012

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