Intraluminal Papillary Urinary Bladder Paraganglioma: case report and review of literatures

Urinary bladder paraganglioma is a very rare tumor, account for <0.05% of all bladder tumors. They are usually submucosal tumors most commonly located near the urinary bladder trigone. A deeply located urinary bladder paraganglioma may not be seen on cystocope, and pelvic sidewall paraganglioma may mimic urinary bladder paraganglioma. Here we present an extremely rare case of urinary bladder paraganglioma presenting as 39-year-old woman incidentally found to have an intraluminal papillary bladder tumor and it turned out to be a paraganglioma. Most of the paragangliomas are usually functional tumors, which frequently cause symptoms related to catecholamine release. In addition to systemic symptoms like other paragangliomas, bladder paraganglioma may cause specific symptoms during urination and sexual intercourse that warrant attention for diagnosis and management. Preoperative, correct diagnosis of such case with palliative medication using catecholamine antagonist may be crucial to prevent adverse complication. J Radiol Sci 2015; 40: 99-102 Correspondence Author to: Suk-Ping Ng Department of Radiology, MacKay Memorial Hospital, Taipei, Taiwan No. 92, Sec. 2, Zhongshan N. Road, Taipei 10449, Taiwan 05_RAG_1706.indd 99 2015/11/26 下午 04:35:25 Intraluminal papillary urinary bladder paraganglioma 100 J Radiol Sci September 2015 Vol.40 No.3 Figure 1. Coronal reformation image of post contrast enhanced CT scan shows an ovarian cystic tumor with septal structure and mural part in pelvic region with extrinsic compression of the urinary bladder. Papillary intraluminal bladder mass (arrow) about 1.9 cm x 2 cm in dome of the urinary bladder is incidentally found, with adjacent bladder wall thickening. Figure 1