Chen W J, Hsieh H H, Wan Y L
Department of Pathology, Chang-Gung Memorial Hospital, Kaohsiung, Taiwan, China.
Br J Urol. 1992 May;69(5):510-2. doi: 10.1111/j.1464-410x.1992.tb15598.x.
Three cases of urachal abscess with extensive interstitial inflammation and fibrosis are reported. Clinically, all patients had a lower abdominal mass and CT scan and ultrasonic examination revealed a large tumour located anterior or superior to the bladder. They all underwent laparotomy and had either a partial cystectomy or an en bloc resection of the bladder and adjacent organs due to severe adhesions. Microscopic examination of the specimens revealed no evidence of carcinoma and only abscess formation with extensive chronic interstitial inflammation and fibrosis were seen. In one case, residual columnar epithelium suggestive of urachal origin was identified in the abscess cavity. Urachal abscess should be considered when dealing with lower abdominal masses.
报告了3例脐尿管脓肿伴广泛间质炎症和纤维化的病例。临床上，所有患者均有下腹部肿块，CT扫描和超声检查显示膀胱前方或上方有一个大肿瘤。由于粘连严重，他们均接受了剖腹手术，并行部分膀胱切除术或膀胱及邻近器官整块切除术。标本的显微镜检查未发现癌证据，仅见脓肿形成伴广泛慢性间质炎症和纤维化。在1例病例中，在脓肿腔内发现提示脐尿管起源的残留柱状上皮。处理下腹部肿块时应考虑脐尿管脓肿。
