螺旋CT对周围型小细胞肺癌的诊断价值

目的:探讨周围型小细胞肺癌(PSCLC)的CT表现及其诊断价值.方法:回顾性分析53例经皮肺穿刺活检或手术病理证实的PSCLC患者的CT表现.结果:53例中,肺内病灶呈结节状39例,团块状11例,片絮状3例;结节状或团块状病灶表现为边缘清晰的小波浪状或浅分叶状.49例伴有肺门或/和纵隔淋巴结肿大,其中39例肺门或和纵隔肿大淋巴结的大小超过肺内肿瘤,35例肿大的淋巴结融合成块而呈现冰冻纵隔改变.结论:周围型小细胞肺癌的CT表现有一定的特征性,螺旋CT扫描是诊断PSCLC的有效检查方法.

Spiral CT in the Diagnosis of Peripheral Small Cell Lung Cancer

Objective:To evaluate the significance of CT findings in the diagnosis of peripheral small cell lung cancer (PSCLC).Methods:The CT findings of 53 cases with PSCLC were retrospectively analyzed.AIl cases were confirmed by pathology with percutaneous transthoracic needle biopsy or operation.Results:Among the 53 cases of PSCLC,there were intrapulmonary nodule (39 cases),mass (11 cases) and patchy opacity (3 cases).Nodule or mass lesions appeared as well-defined with slightly wavy or lobulated contour.Hilar or/and mediastinal lymph node enlargement were assessed in 49 cases,which were bigger than the primary pulmonary lesions in 39 patients.Confluence of lymphadenopathy and "freezing mediastinum" in 35 cases.Conclusion:Characteristic CT findings can be showed in PSCLC,spiral CT scanning is of value in the diagnosis of PSCLC.