纵隔支气管囊肿的CT表现  

CT Manifestations of Mediastinal Congenital Bronchogenic Cysts

作　　者：沈训泽[1] 王华[1] 

机构地区：[1]浙江省绍兴市人民医院放射科,浙江绍兴312000

出　　处：《中国医学影像学杂志》2014年第11期820-823,共4页Chinese Journal of Medical Imaging

摘　　要：目的探讨纵隔支气管囊肿的CT表现特点及其诊断价值。资料与方法回顾性分析14例经手术病理证实的纵隔支气管囊肿患者的临床及CT表现，其中12例行CT平扫和增强扫描，另外2例仅行CT平扫或增强扫描。结果14例支气管囊肿均为含液囊肿，其中3例CT值〈20 HU，7例CT值20-60 HU，4例CT值〉60 HU；囊肿位于前、后纵隔各4例，均在左侧；中纵隔6例，其中5例位于右侧；1例后纵隔囊肿恶变为腺癌。结论纵隔支气管囊肿可发生于纵隔的任何部位，中纵隔支气管囊肿好发于右侧，而前、后纵隔支气管囊肿有左侧发病倾向，CT图像上类圆形无强化的均匀软组织密度或水样密度囊肿为其典型表现。PurposeTo explore the CT features and its diagnostic value of mediastinal congenital bronchogenic cysts.Materials and MethodsThe clinical findings and CT manifestations of 14 patients with mediastinal bronchogenic cysts confirmed by surgery and pathology were retrospectively analyzed, among which 12 were performed by both plain and enhanced CT scan, and the other 2 only received either plain or enhanced CT scan.ResultsAll the patients presentedfluid-filled cysts, and 3 of them had CT number lower than 20 HU, 7 cases from 20 to 60 HU, and 4 more than 60 HU. Four patients had lesions in anterior mediastinum, 4 others in posterior mediastinum, and all the 8 lesions were on the left side; 6 patients had lesions in middle mediastinum, among which 5 lesions were on the right side; and 1 case of posterior bronchogenic cysts cancerated into adenocarcinoma.ConclusionMediastinal bronchogenic cysts can appear in any part of mediastinum; lesions in middle mediastinum are more likely to occur on the right side, whilst lesions in anterior and posterior mediastinum are often located on the left side. The typical CT manifestations show well-defined round or oval masses of homogeneous soft-tissue or cysts with watery density.

关 键 词：纵隔 纵隔囊肿 支气管 支气管源性囊肿 体层摄影术 螺旋计算机 

分 类 号：R564[医药卫生—呼吸系统]