From the Departments of Ultrasonography.
Nuclear Medicine, Beijing Shijitan Hospital, Capital Medical University, Haidian District, Beijing, China.
Clin Nucl Med. 2022 Sep 1;47(9):e611-e612. doi: 10.1097/RLU.0000000000004181. Epub 2022 Apr 6.
Xanthogranulomatous pyelonephritis is a rare disease that was often accompanied with urinary obstruction. The focal form of xanthogranulomatous pyelonephritis is frequently misdiagnosed as malignancy. Here we present FDG PET/CT findings of a case focal xanthogranulomatous pyelonephritis in a 66-year-old woman with polycystic liver and kidney disease. The image showed a polycystic mass in the inferior pole of right kidney with high FDG uptake in the cystic wall, which was suggestive of a cystic renal carcinoma. Right radical nephrectomy was subsequently performed. The postsurgical pathology revealed xanthogranulomatous pyelonephritis.
黄色肉芽肿性肾盂肾炎是一种罕见的疾病，常伴有尿路梗阻。局灶性黄色肉芽肿性肾盂肾炎常被误诊为恶性肿瘤。本文报道了一例 66 岁女性多囊肝、多囊肾病患者，其局灶性黄色肉芽肿性肾盂肾炎的 FDG PET/CT 表现。图像显示右肾下极多囊性肿块，囊壁摄取 FDG 增高，提示囊性肾癌。随后行右肾根治性切除术。术后病理提示黄色肉芽肿性肾盂肾炎。
