膀胱异位嗜铬细胞瘤的MSCT诊断  

Multi-slice CT diagnosis of ectopic pheochromocytoma of urinary bladder

作　　者：许小伍[1] 唐永华[2] 缪飞[2] 

机构地区：[1]安徽省宣城市人民医院影像科,安徽宣城242000 [2]上海交通大学医学院附属瑞金医院放射科,上海200025

出　　处：《医学影像学杂志》2012年第11期1907-1910,共4页Journal of Medical Imaging

摘　　要：目的讨论膀胱异位嗜铬细胞瘤MSCT表现。方法对8例资料完整、经手术证实膀胱异位嗜铬细胞瘤的CT图像进行回顾性分析。结果 8例肿块均为单发,分别位于膀胱三角区(2例)、顶部(2例)、前壁(1例)、后壁(3例),2例位于粘膜下,6例位于膀胱肌层。病灶平扫呈均匀低密度,无囊变,1例可见环形钙化,增强扫描动脉期明显均匀强化,动脉期与平扫病灶CT值相差>40HU,门脉期与动脉期CT值相差为15HU左右。结论膀胱异位嗜铬细胞瘤在MSCT有其特征性表现,术前可以明确诊断。Objective To discuss MSCT imaging features of ectopic pheochromocytoma of urinary bladder （EPB）. Meth- ods We retrospectively analyzed the imaging features of 8 cases of EPB proved by pathology. Results All lesions were solitary. 3 cases were found in trigone, 1 case in neck, 1 case in right lateral wall, 2 lesions in submucosa, 6 cases muscu- lar layer trigone of urinary bladder, 2 lesions in dome of urinary bladder, 1 lesion in anterior wall of urinary bladder, and 3 lesions in posterior wall of urinary bladder. Low-density without cystic degeneration was found in plain CT scan. Annu- lar calcification was only seen in one case. Obvious enhancement was shown in arterial phase. The difference between arte- rial phase and plain scan was 〉40 HU, that between arterial phase and portal phase was about 15 HU. Conclusion Radiology features of EPB in MSCT have characteristics, which can confirm the diagnosis before surgery.

关 键 词：膀胱肿瘤 嗜铬细胞瘤 体层摄影术 X线计算机 

分 类 号：R814.42[医药卫生—影像医学与核医学] R737.14[医药卫生—放射医学]