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为探讨CT检查肺癌内钙化的表现及其发生率,作者分析了353例肺癌的CT资料,从中发现20例(6%)有钙化存在。其中15例癌肿位于肺部,5例位于纵隔。肿块直径等于或大于5cm的14例;直径在3cm 和5cm 之间者3例;直径等于小于2cm 的3例。肿瘤的细胞类型包括小细胞癌(8例)、鳞状上皮癌(7例)、腺癌(4例)和未分化癌(1例)。钙化形状8例呈无定形性、10例呈斑点状、2例呈网状。8例无定形性钙化的肿瘤中有5例是小细胞癌,10例呈斑点状钙化的肿瘤中鳞状上皮癌
To investigate the CT appearance and incidence of intra-calcification in lung cancer, the author analyzed the CT data of 353 cases of lung cancer, and found that 20 cases (6%) had calcification. Of these, 15 were located in the lungs and 5 were located in the mediastinum. There were 14 cases with diameters equal to or greater than 5 cm; 3 cases with diameters between 3 cm and 5 cm; and 3 cases with diameter equal to less than 2 cm. Tumor cell types include small cell carcinoma (8 cases), squamous cell carcinoma (7 cases), adenocarcinoma (4 cases), and undifferentiated carcinoma (1 case). The calcified shape was amorphous in 8 cases, spotted in 10 cases, and meshed in 2 cases. Of the 8 cases of amorphous calcified tumors, 5 were small cell carcinomas and 10 were squamous epithelial carcinomas in punctate calcified tumors.