Makihara Yuko, Yoshizako Takeshi, Miyamoto Akina, Yoshida Rika, Wada Koichiro, Kaji Yasushi
Department of Radiology, Shimane University, Faculty of Medicine, 89-1 Enya Izumo, Shimane 693-8501, Japan.
Department of Urology, Shimane University, Faculty of Medicine, 89-1 Enya Izumo, Shimane 693-8501, Japan.
Radiol Case Rep. 2024 Nov 25;20(2):1014-1017. doi: 10.1016/j.radcr.2024.10.133. eCollection 2025 Feb.
Herein, we report a rare case of localized ureteral amyloidosis in a patient with malignant lymphoma. A 73-year-old female patient visited our institution for a comprehensive examination and treatment of malignant lymphoma. Contrast-enhanced computed tomography scan and magnetic resonance imaging revealed left hydronephrosis and a left lower ureteral mass. These findings suggested either ureteral amyloidosis or a ureteral carcinoma with significant fibrosis. Cystoscopic biopsy was performed, and the patient was pathologically diagnosed with ureteral amyloidosis. Renal renography revealed left renal dysfunction. However, the patient was asymptomatic. Hence, the patient should be followed-up for ureteral amyloidosis. Computed tomography scan were performed every 3 months, and after approximately 1 year, there was no evidence of mass enlargement. This case highlights the rarity of ureteral amyloidosis and the importance of imaging diagnosis in clinical practice.
在此，我们报告一例恶性淋巴瘤患者发生局部输尿管淀粉样变性的罕见病例。一名73岁女性患者因恶性淋巴瘤前来我院进行全面检查和治疗。增强计算机断层扫描和磁共振成像显示左肾积水和左输尿管下段肿块。这些发现提示可能是输尿管淀粉样变性或伴有显著纤维化的输尿管癌。进行了膀胱镜活检，患者经病理诊断为输尿管淀粉样变性。肾动态显像显示左肾功能不全。然而，患者并无症状。因此，应对该患者的输尿管淀粉样变性进行随访。每3个月进行一次计算机断层扫描，大约1年后，没有肿块增大的迹象。该病例凸显了输尿管淀粉样变性的罕见性以及影像诊断在临床实践中的重要性。
