Division of Diagnostic Radiology, National Cancer Center Hospital, Tokyo, Japan.
J Thorac Imaging. 2011 Feb;26(1):W30-2. doi: 10.1097/RTI.0b013e3181f461a8.
A 69-year-old man with a history of exposure to asbestos was admitted because of a chest radiographic abnormality. Subsequent findings from computed tomography and a thoracoscopic biopsy suggested malignant mesothelioma. Punctate calcification was observed in the pleural tumor on computed tomography scanning. The patient underwent pleuropneumonectomy, and the tumor was pathologically diagnosed as malignant mesothelioma, sarcomatoid type with osseous and cartilaginous differentiation. Malignant mesothelioma with osseous and cartilaginous differentiation is a rare condition. Punctate calcification in the pleural mass as a lesion distinct from the pleural plaque may indicate osseous or osteosarcomatous differentiation in malignant mesothelioma.
一位 69 岁男性，有接触石棉的病史，因胸部 X 线异常而入院。随后的计算机断层扫描和胸腔镜活检结果提示恶性间皮瘤。计算机断层扫描显示胸膜肿瘤有点状钙化。患者接受了胸膜肺切除术，肿瘤的病理诊断为恶性间皮瘤，肉瘤样型，伴有骨和软骨分化。伴有骨和软骨分化的恶性间皮瘤是一种罕见的情况。胸膜肿块中的点状钙化作为一种与胸膜斑块不同的病变，可能提示恶性间皮瘤中有骨或骨肉瘤样分化。
