胸腺类癌的CT和MRI影像学表现分析  

CT and MRI findings of thymic carcinoid

作　　者：闫卫强 胡玉川 崔光彬 荣伟程 YAN Weiqiang;HU Yuchuan;CUI Guangbin;RONG Weicheng(Department of Radiology,Tangdu Hospital,the Air Force Medical University,Xi’an 710038,China)

机构地区：[1]空军军医大学唐都医院放射科,陕西西安710038

出　　处：《实用放射学杂志》2024年第7期1062-1064,共3页Journal of Practical Radiology

摘　　要：目的探讨胸腺类癌的CT及MRI影像学表现。方法回顾性分析12例胸腺类癌患者的临床资料,患者均经免疫组化和组织病理学分型,分析患者的CT和MRI影像学特征(包括形态、密度、信号、有无包膜、钙化、增强扫描强化程度等)。结果不规则形8例;内部密度或信号不均匀10例;无包膜9例;瘤体内见钙化8例;囊变、坏死7例;瘤内出血2例;心包或胸膜腔积液6例;术前转移2例;侵犯周围结构(血管)10例;增强扫描:轻度强化2例,中度强化6例,明显强化4例;7例包绕纵隔大血管生长,其中4例发现上腔静脉癌栓;肿瘤内新生血管4例。结论胸腺类癌患者的CT和MRI影像学有一定的表现特征,多呈轻至中度强化,常沿着纵隔血管间隙呈浸润性生长,伴瘤内血管征,其影像学特征对临床诊断具有重要意义。Objective To investigate the CT and MRI findings of thymic carcinoid.Methods The clinical data of 12 thymic carcinoid patients were analyzed retrospectively.All patients underwent immunohistochemistry and histopathological typing.All CT and MRI imaging features,including morphology,density,signal,presence/absence of capsule,calcification,degree of enhancements,were further analyzed.Results Irregular contour was identified in 8 cases;heterogeneous internal density or signal in 10 cases;absence of capsule in 9 cases;intratumoral calcification in 8 cases;cystic or necrotic component in 7 cases;intratumoral hemorrhage in 2 cases;pericardial or pleural effusion in 6 cases;preoperative metastasis in 2 cases;invasion of surrounding structures(vessels)in 10 cases.On contrast-enhanced images,there were 2 cases with mild enhancement,6 cases with moderate enhancement,and 4 cases with obvious enhancement.And tumor enclosing the mediastinal great vessels was observed in 7 cases,among which 4 cases showed tumor thrombi in the superior vena cava,and intratumoral neovascularization was found in 4 cases.Conclusion Thymic carcinoid patients tend to present certain CT and MRI imaging features,mostly manifesting mild to moderate enhancement,infiltrative growth pattern along the mediastinal vascular space,and concurrent intratumoral vascular sign,which are of vital significance to clinical diagnosis.

关 键 词：胸腺类癌 计算机体层成像 磁共振成像 

分 类 号：R736.3[医药卫生—肿瘤] R814.42[医药卫生—临床医学] R445.2