一位八十八岁老人因反复下尿路感染被送入我们医院。他有良性前列腺增生的开放式前列腺摘除手术史和吸烟史。超声检查在膀胱左侧壁的囊袋内疑似出现肿块。尽管膀胱镜检中未观察到膀胱腔内的肿块，但腹部CT检查发现左侧盆腔软组织肿块。由于怀疑恶性肿瘤，进行了18F-FDG PET/CT检查，检测到一个高代谢的肿块并将其切除。组织病理学诊断为慢性附睾炎继发的肉芽肿。 版权所有 © 2023 Wolters Kluwer Health，Inc.。保留所有权利。

An 88-year-old man was admitted to our hospital with a recurrent lower urinary tract infection. He had a history of open prostatectomy for benign prostatic hyperplasia 15 years ago and smoking. A mass arising within a bladder diverticula was suspected on the left lateral wall of the bladder on ultrasonography. Although no mass was observed in the bladder lumen on the cystoscopy, abdominal CT detected a left-sided pelvic soft tissue mass. A hypermetabolic mass was detected on 18F-FDG PET/CT performed because of suspicion of malignancy, and it was excised. Granuloma secondary to chronic vasitis was diagnosed histopathologically.Copyright © 2023 Wolters Kluwer Health, Inc. All rights reserved.