Polyp niệu quản lành tính gây tắc nghẽn đường bài tiết cao: Báo cáo trường hợp case lâm sàng tại bệnh viện Việt Đức

Benign ureteral polyp causing upper urinary tract obstruction: a case report at Viet Duc hospital

SUMMARY

Fibroepithelial ureteral polyp is a benign neoplasm,derived from mesodermal tissue and is a cause of upper urinary tract obstruction. The etiology and pathogenic mechanism are unknown. Preoperation diagnosis of ureteral polyps is difficult. However, multidetector CT, especially CT urography in excretory phase gives some suggestive signs of ureteral polyp. We reporta 27- year- old man with left back pain and diagnosed congenital left ureteral stenosis 3 years ago, untreated, and this time presenting with increasing back pain and upper ureteral tract obstruction, admitted Viet Duc University Hospital. On CT imaging, the patient was diagnosed upper ureteral tract obstruction due to ureteral tumor. The patient underwent a laparoscopic surgery and was diagnosed to be fibroepithelial ureteral polypin operation and histologic examination. This case illustrates a rare cause of urinary obstruction that should be considered when the imaging findings and presentation are atypical for more common etiologies of ureteral obstruction.

Keywords: fibroepithelial ureteral polyps, ureteral polyps, ureteral obstruction