阴茎单纯性髓外浆细胞瘤的 18 F-FDG PET/CT 表现。
18 F-FDG PET/CT in Solitary Extramedullary Plasmacytoma of the Penis.
机构信息
From the Department of Nuclear Medicine, Peking University First Hospital, Beijing, China.
Department of Neurology, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, China.
出版信息
Clin Nucl Med. 2024 Jul 1;49(7):680-682. doi: 10.1097/RLU.0000000000005234. Epub 2024 Apr 5.
A 72-year-old man presented with a painless penile mass for 3 months. Contrast-enhanced CT revealed heterogeneous enhancement, whereas 18 F-FDG PET/CT displayed inhomogeneous 18 F-FDG accumulation in the lesion without other abnormal activity. The histopathological examination from biopsied specimen confirmed the diagnosis of a plasmacytoma. However, the subsequent tests, including serum/urine immunofixation electrophoresis, serum/urine free light chain assay, and bone marrow smear/biopsy, did not show any abnormalities. The conclusive diagnosis was a solitary extramedullary plasmacytoma of the penis.
一位 72 岁男性因无痛性阴茎肿块就诊，病程 3 个月。增强 CT 显示病变不均匀强化，而 18 F-FDG PET/CT 显示病变不均匀摄取 18 F-FDG，无其他异常活性。活检标本的组织病理学检查证实为浆细胞瘤的诊断。然而，随后的检查，包括血清/尿液免疫固定电泳、血清/尿液游离轻链测定和骨髓涂片/活检，均未显示任何异常。最终诊断为阴茎孤立性髓外浆细胞瘤。
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