本文报导两例输尿管第Ⅲ狭窄部位结石嵌顿,结石被包裹,输尿管口周围组织异常增生,酷似肿瘤,形成大泡状膀胱炎,以致于延误诊断,并分析其原因及其教训。病例报告例1,患者,女,45岁,住院号119769。因尿频、尿急,尿痛伴右侧腰痛两年余,近两年经常出现上述症状,门诊以尿路感染 This article reports two cases of third ureteral ureteral stricture stone incarceration, stones were wrapped around the ureter ostium anomalous proliferation, resembles a tumor, the formation of bullous cystitis, resulting in delayed diagnosis, and analyze its causes and lessons learned. Case report 1, patient, female, 45 years old, hospital number 119769. Due to frequent urination, urgency, dysuria with right lower back pain more than two years, the past two years, often the above symptoms, out-patient urinary tract infection