原发性肺黏液腺癌CT表现

CT manifestations of primary pulmonary mucinous adenocarcinoma

目的:探讨原发性肺黏液腺癌(PPMA)的CT表现及其诊断价值。方法:回顾性分析2015年1月-2018年5月本院经病理证实的22例PPMA患者的临床和影像资料。所有患者行胸部CT平扫及增强检查,观察病灶的形态、位置、病灶内及周边情况、增强表现及有无淋巴结转移等。结果:22例中肿块型18例,其中周围型15例、中央型3例,4例多发,3例伴有空洞,4例可见晕征,7例合并淋巴结转移;肺炎型4例,均可见晕征、枯枝征及血管漂浮征,2例合并主支气管管壁增厚。增强扫描病灶呈轻度强化或不强化。结论:PPMA的CT表现具有一定特征性,可为临床诊断和治疗提供依据。

Objective:To explore the CT features and diagnostic values of primary pulmonary mucinous adenocarcinoma(PPMA).Methods:Clinical and multi-slice CT(MSCT)data of 22 PPMA patients confirmed by pathology from January 2015 to May 2018 was analyzed retrospectively.All patients underwent plain and enhenced chest CT scan.CT features including morphology,lesion location,internal and peripheral changes,enhanced manifestations and lymph node metastasis were analyzed and recorded.Results:Among the 22 patients,there were 18 cases with mass type,including 15 with peripheral type and 3 with central type;4 cases had multiple lesions,3 concomitant cavity,4 halo signs,and 7 lymph node metastasis.Halo sign,dead branches sign and vascular floating sign were found in all 4 cases with pneumonia type.Thickened wall in principle bronchus was showed in 2 cases.All lesions showed mild or no enhancement on contrast-enhanced scan.Conclusion:CT features have certain specificities in diagnosis of primary pulmonary mucinous adenocarcinoma,which can provide clues for diagnosis and treatment of the disease.