Kato Shuichi, Hotta Hiroshi, Mineta Masayuki, Miyake Masafumi
Department of Urology, Asahikawa Red Cross Hospital.
Nihon Hinyokika Gakkai Zasshi. 2013 May;104(3):536-9. doi: 10.5980/jpnjurol.104.536.
A 56-year-old woman with polycystic kidney disease (PKD) presented with high fever and left back pain. Abdominal computed tomography (CT) scan showed multiple renal cysts, left hydronephrosis and a left ureteral stone. Her condition could not be managed with antibiotic therapy and indwelling left ureteral stent. Infected of left renal cysts was suspected, we performed diffusion-weighted magnetic resonance imaging (MRI). Diffusion-weighted MRI showed higher signal intensity in one renal cyst than in other renal cysts. CT-guided percutaneous puncture of an infected cyst was performed. Her symptoms and fever resolved following the procedure. Identification of an infected renal cyst in PKD is often difficult on either ultrasonography or CT. Diffusion-weighted MRI allowed exact localization of the infected cyst among many cysts in PKD.
一名56岁的多囊肾病（PKD）女性患者出现高热和左背部疼痛。腹部计算机断层扫描（CT）显示多个肾囊肿、左肾积水和左侧输尿管结石。抗生素治疗和留置左侧输尿管支架均无法控制她的病情。怀疑左肾囊肿感染，于是我们进行了扩散加权磁共振成像（MRI）。扩散加权MRI显示一个肾囊肿的信号强度高于其他肾囊肿。在CT引导下对感染囊肿进行了经皮穿刺。术后她的症状和发热得到缓解。在多囊肾病中，无论是超声检查还是CT检查，通常都很难识别感染的肾囊肿。扩散加权MRI能够在多囊肾病的众多囊肿中准确定位感染的囊肿。
