肺小细胞神经内分泌癌MDCT征象分析

Analysis of MDCT Features on Pulmonary Small Cell Neuroendocrine Tumor

目的:探讨肺小细胞神经分泌癌的MDCT表现特征。方法:对具有完整胸部MDCT资料并经病理证实的28例肺小细胞神经内分泌癌CT表现进行回顾性分析。结果:中央型肺小细胞神经内分泌癌18例(64%),支气管管壁增厚伴肺内肿块或结节17例(94%),纵隔或肺门淋巴结肿大15例(83%),增强扫描可见肿块与肿大淋巴结明显不均匀强化,周围型肺小细胞神经内分泌癌10例(36%),密度均匀,呈分叶状,强化明显,CT无特征性表现。结论:肺小细胞神经内分泌癌主要征象以支气管管壁增厚伴肺门区肿块为主,多伴有肺门、纵膈淋巴结转移。

Objective： To explore CT features of pulmonary small cell neuroendocrine tumor. Methods： Imaging findings of 28 patients with pathologically confirmed pulmonary small cell neuroendocrine tumor were retrospectively analyzed, all patients underwent plain CT and contrast enhanced CT examinations. Results： There were 18 cases were central type. Mass or nodule in hilar or medisatina side and thick Bronchial wall were seen in 18 （88%）. Hilar and mediastinal lymphadenopathy were seen in 15 （83%）. Mass and lymph nodes were significantly heterogeneous enhancement with contrast enhanced CT examination. 10 cases fell into peripheral carcinoma without features of CT. Conclusion： Pulmonary small cell neuroendocrine tumor is mainly as bronchial wall thickening with mass, the tumor has homogeneous density with hilar and mediastinal lymph nodes.