论文部分内容阅读
目的 评价周围型肺癌钙化的CT征象及诊断意义。材料与方法 98例经CT检查并有病理证实的周围型肺癌小,17例可见钙化。其中腺癌10例,鳞癌5例,肺泡癌2例。用2～3mm薄层扫描评价肿瘤的钙化征象。结果 肺癌钙化征象的CT形态有三种:(1)细点状钙化:12例,其中腺癌6例,鳞癌4例,肺泡癌2例。钙化呈细小点状或沙粒状偏心分布。(2)斑片状钙化:3例,其中腺癌2例,鳞癌1例。钙化呈不规则斑片状,偏心分布。(3)结节状钙化:2例均为腺癌,1例为单发结节,另1例为多发结节。结论 CT上肺结节或肿块内出现钙化,尤其是细点状钙化不能作为排除肺癌的指征,而应结合其它CT征象才能作出鉴别诊断。
Objective To evaluate the CT features of peripheral lung cancer and its diagnostic significance. Materials and Methods Peripheral lung cancer was confirmed in 98 cases with pathological examination confirmed by CT. Calcification was seen in 17 cases. There were 10 cases of adenocarcinoma, 5 cases of squamous cell carcinoma, and 2 cases of alveolar carcinoma. The calcification of the tumor was evaluated using a 2 to 3 mm thin layer scan. Results There were three types of CT signs of lung calcification: (1) Fine-spot calcification: 12 cases, including 6 adenocarcinomas, 4 squamous cell carcinomas, and 2 alveolar carcinomas. Calcification is finely dotted or sand-like eccentrically distributed. (2) Patchy calcification: 3 cases, including 2 adenocarcinomas and 1 squamous cell carcinoma. Calcification is irregularly patchy and eccentrically distributed. (3) nodular calcification: 2 cases were adenocarcinoma, 1 case was a single nodule, and the other case was multiple nodules. Conclusion The presence of calcification in pulmonary nodules or masses on CT, especially fine-spot calcification, cannot be used as an indication for the exclusion of lung cancer. It should be combined with other CT signs to make a differential diagnosis.