From the Departments of Nuclear Medicine and PET/CT, and.
Nephrology, Post Graduate Institute of Medical Education and Research, Chandigarh, India.
Clin Nucl Med. 2019 Apr;44(4):e294-e295. doi: 10.1097/RLU.0000000000002482.
We present a case of a 22-year-old man with history of allogenic renal transplantation on immunosuppression, who underwent F-FDG-PET/CT to characterize a lesion in the transplanted kidney on ultrasonogram and contrast-enhanced computed tomography imaging. PET/CT revealed FDG avid lesion in the transplanted kidney and mural thickening involving the distal ileum, ileocecal junction, and ileocolic lymph nodes. Subsequent histopathological examination from the renal lesion revealed renal cell carcinoma in the transplanted kidney. Additionally, endoscopic biopsy from the ileal thickening revealed granulomatous inflammation, suggesting tuberculosis, which was missed on both ultrasonogram and contrast-enhanced CT imaging.
我们报告了 1 例 22 岁男性，有同种异体肾移植及免疫抑制治疗史，因超声和增强 CT 检查发现移植肾病变行 F-FDG-PET/CT 检查。PET/CT 显示移植肾 FDG 摄取增高病灶，同时伴有回肠末端、回盲部及回结肠系膜淋巴结壁层增厚。肾病灶的组织病理学检查提示为移植肾肾细胞癌。此外，回肠增厚处的内镜活检显示为肉芽肿性炎症，提示为结核，这在超声和增强 CT 检查中均漏诊。
