From the Department of Nuclear Medicine, Sanjay Gandhi Post Graduate Institute of Medical Sciences, Lucknow, India.
Clin Nucl Med. 2021 Jan;46(1):60-62. doi: 10.1097/RLU.0000000000003385.
Malakoplakia is a rare inflammatory condition that can affect many organ systems, including the genitourinary tract. It is associated with impaired immune function. Isolated renal parenchymal involvement has been reported in very few cases. Urinary tract and digestive malakoplakia have been reported in transplant recipients, but the involvement of transplant itself is rare. Variable clinical manifestations and nonspecific radiological appearance make the diagnosis difficult. The differential diagnosis includes infective etiologies and malignancy. We report a case of renal allograft malakoplakia, mimicking as a malignancy on F-FDG PET/CT.
黏膜相关样浆细胞瘤病是一种罕见的炎症性疾病，可影响许多器官系统，包括泌尿生殖系统。它与免疫功能受损有关。孤立性肾实质受累的病例非常少见。曾有报道在移植受者中出现泌尿道和消化道黏膜相关样浆细胞瘤病，但移植本身受累的情况较为罕见。不同的临床表现和非特异性的影像学表现使诊断变得困难。鉴别诊断包括感染性病因和恶性肿瘤。我们报告了一例肾移植后黏膜相关样浆细胞瘤病的病例，在 F-FDG PET/CT 上表现为恶性肿瘤。
