摘要
目的:探讨原发性气管主支气管低度恶性肿瘤的CT及PET/CT表现。方法:回顾分析28例经病理证实的原发性气管主支气管低度恶性肿瘤患者的CT、PET/CT表现及病理资料,其中粘液样表皮癌(MEC)11例,腺样囊性癌(ACC)10例及类癌7例。24例行胸部CT平扫及增强检查,3例行CT平扫,6例同时行PET/CT检查,1例仅行PET/CT扫描。结果:11例MEC,CT表现为宽基底腔内结节9例,腔内外肿块2例。10例ACC呈管壁弥漫管壁增厚5例,腔内结节4例,腔内外肿块1例。7例类癌为腔内外肿块4例,腔内结节3例。MEC与类癌均明显强化。8例ACC,轻度强化6例,中度强化2例。7例SUV值范围约2.1~8.9。结论:原发性气管主支气管低度恶性肿瘤的CT表现具有一定特征,MEC及类癌多为腔内或腔内外结节伴明显强化。ACC多为弥漫管壁浸润型伴轻度强化。SUV值均明显升高。
Objective:To investigate the CT and PET/CT features of primary tracheal and main bronchial low-grade malignant tumor. Methods: A retrospective analysis was performed on 28 cases with pathology proven primary tracheal and main bronchial low-grade malignant tumor,including mucoepidermoid carcinoma (MEC, 11 cases), adenoid cystic carcinoma (ACC,10 cases) and carcinoid (7 cases). 24 cases underwent CT scanning without and with contrast enhancement. 3 patients only had CT plain scan, 6 patients had CT and PET/CT and one patient just underwent PET/CT scanning. Results:Of thell cases with MEC,there were wide-base intraluminal nodule (9 cases) and intra extraluminal mass (2 cases). Of the 10 cases with ACC,infiltrative wall thickening (5 cases) ,intraluminal nodule (4 cases), and intra-extraluminal mass ( 1 case) were assessed. In 7 cases with carcinoid, intra-extraluminal mass (4 cases) and intraluminal nodule (3 cases) were dis played. Obvious enhancement could be revealed in all of the MEC and carcinoid tumors. In 8 cases of ACC, mild enhance ment was revealed in 6 cases and moderate enhancement in 2 cases. The maximum SUV of tumors ranged from 2.1 to 8.9. Conclusions:Certain characteristic CT manifestations of the primary tracheal and main bronchial low grade malignant tumor were revealed. Most of the MEC and carcinoid manifested as intraluminal or intra-extraluminal lesion with obvious enhance ment,and ACC manifested as infiltrative wall thickening with mild enhancement. SUV values were all increased.
出处
《放射学实践》
北大核心
2017年第11期1137-1140,共4页
Radiologic Practice
关键词
气管
粘液表皮样癌
腺样囊性癌
类癌
体层摄影术
X线计算机
病理学
Trachea
Mucoepidermoid carcinoma
Adenoid cystic carcinoma
Carcinoid
Tomography, X-ray computed
Pathology