Chen Jiao, Yang Han-Feng
Department of Obstetrics and Gynecology, Affiliated Hospital of North Sichuan Medical College, Nanchong 637000, Sichuan Province, China.
Department of Radiology, Affiliated Hospital of North Sichuan Medical College, Nanchong 637000, Sichuan Province, China.
World J Clin Cases. 2022 May 26;10(15):4929-4934. doi: 10.12998/wjcc.v10.i15.4929.
Paraganglioma of the urinary bladder (PUB) is a nonepithelial tumor of the bladder that is also known as bladder pheochromocytoma. The incidence of nonfunctional paraganglioma of the urinary bladder is rare in clinical practice.
A case of nonfunctional paraganglioma of the urinary bladder diagnosed and treated in our hospital is reported herein. A 2.5 cm × 2.1 cm moderate-echo mass protruding into the right anterior wall of the bladder was incidentally found during transvaginal color Doppler ultrasound examination. Based on a contrast-enhanced computed tomography scan of the bladder, the right anterior wall of the bladder was considered to present a hemangioma. The patient underwent laparoscopic partial resection of the bladder wall in our hospital, and pathological results showed paraganglioma of the bladder. At present, we have followed up with the patient for half a year, and there has been no recurrence of the tumor.
The imaging patterns of PUB and bladder hemangioma are similar. In clinical practice, the possibility of PUB should be considered for a single wide-based isoechoic mass in the bladder, especially functional PUB may cause some adverse effects during surgery.
膀胱副神经节瘤（PUB）是膀胱的一种非上皮性肿瘤，也被称为膀胱嗜铬细胞瘤。临床上膀胱无功能性副神经节瘤的发病率很低。
本文报道我院诊治的1例膀胱无功能性副神经节瘤病例。经阴道彩色多普勒超声检查时偶然发现一个突向膀胱右前壁的2.5 cm×2.1 cm中等回声肿块。基于膀胱增强计算机断层扫描，膀胱右前壁被认为是一个血管瘤。该患者在我院接受了膀胱壁腹腔镜部分切除术，病理结果显示为膀胱副神经节瘤。目前，我们已对该患者随访半年，肿瘤无复发。
PUB与膀胱血管瘤的影像学表现相似。在临床实践中，对于膀胱内单个宽基底等回声肿块应考虑PUB的可能性，尤其是功能性PUB在手术过程中可能会引起一些不良反应。
