Primary follicular non-hodgkin's lymphoma of the ureter: A case report and literature review

Abstract

Ureteral cancer is a rare type of neoplasm, with the most prevalent forms including squamous cell carcinoma, transitional cell carcinoma and adenocarcinoma. Ureteral lymphoma is particularly uncommon, and forming a pre-oper­ative diagnosis of the disease is often difficult. The current study describes the case of a 31-year-old man presenting with a space-occupying lesion located in the left lower ureter. Follicular non-Hodgkin's lymphoma was diagnosed via intraoperative frozen section and post-operative pathological analysis. The affected ureteric segment was excised, and the ureter was repaired by end-to-end anastomosis with inser­tion of a double-J tube for internal drainage. The patient was followed up for 10 months and presented with no signs of recurrence. The current study affirms the importance of patho­logical examination in the differential diagnosis of ureteral neoplasms and the selection of an appropriate treatment.