胸部高分化型及黏液型脂肪肉瘤的CT表现与病理对照分析  

Imaging features of thoracic well-differentiated and myxoid liposarcoma:Comparison with pathology

作　　者：万齐[1] 关淑君[2] 李新春[1] 孙翀鹏[1] 周嘉璇[1] 夏波 夏亭亭[1] 曾庆思[1] 

机构地区：[1]广州医科大学附属第一医院放射科 [2]广州呼吸疾病研究所 [3]儿科,广东广州510120

出　　处：《中国医学影像技术》2014年第1期78-81,共4页Chinese Journal of Medical Imaging Technology

摘　　要：目的探讨胸部高分化及黏液型脂肪肉瘤的影像学及病理特征。方法回顾分析8例经病理证实的胸部高分化(5例)及黏液型(3例)脂肪肉瘤的影像学及病理资料。所有患者术前均接受CT平扫及增强扫描。结果 8例脂肪肉瘤中(胸壁3例、纵隔5例),肿块大小7.0cm×4.0cm×6.3cm^22.8cm×14.7cm×15.1cm;2例密度均匀(1例为完全软组织密度,1例为完全囊性密度),6例不均匀;3例含脂肪密度,5例无脂肪密度。平扫CT值-86~60HU,增强后实性部分强化,8例中7例轻度强化或无强化、1例中度强化伴局部明显强化。8例中,7例肿瘤包绕或侵犯周围组织。结论胸部高分化型及黏液型脂肪肉瘤的CT表现具有一定特征,且与病理类型密切相关。Objective To explore CT and pathologic [eatures o~ thoracic well-di[[erentiated and myxolo tlposarcum,x. Methods Clinical and imaging characteristics of 8 patients with thoracic liposarcoma （5 well-differentiated liposarcoma and 3 myxoid liposarcoma） proved with pathology were retrospectively analyzed. Plain and contrast enhanced CT were per- formed on all 8 patients. Results The size of tumors （including 5 from mediastinum and 3 from chest wall） ranged 7.0 cm X4.0 cm〉（6.3 cm--22.8 cmX 14.7 cmX 15.1 crn. Tumors in 2 patients showed homogeneous density （1 showed com- pletely soft tissue density, the other showed wholly cystic density）, while in 6 had inhomogeneous density. Fat density in the tum~ was detected in 3 patients and no fat density in 5 cases. CT value for tumors on plain CT ranged （tom -- 86 to 60 HU. The masses enhanced slightly （n=7） to moderately （n= 1）, and the latter showed significantly local enhance- ment. Tumors violated surrounding tissue in 7 patients. Conclusion CT features of thoracic well-differentiated and myxoid liposarcoma are relatively specific, which are closely related to pathologic changes.

关 键 词：胸部肿瘤 脂肪肉瘤 体层摄影术 X线计算机 

分 类 号：R734.4[医药卫生—肿瘤] R814.42[医药卫生—临床医学]