From the Departments of Nuclear Medicine.
General Surgery, Peking Union Medical College Hospital, Chinese Academy of Medical Science and Peking Union Medical College, Beijing, China.
Clin Nucl Med. 2023 Nov 1;48(11):985-986. doi: 10.1097/RLU.0000000000004832. Epub 2023 Sep 7.
Two years ago, a 64-year-old man underwent an 18 F-FDG PET/CT for staging rectal cancer. Besides the hypermetabolic rectal lesion, the image revealed a mesenteric lymph node with intense activity and multiple lung nodules with slight FDG uptake, which were highly suspected of metastases. After surgery and multiple cycles of chemotherapy, the follow-up 18 F-FDG PET/CT showed remission of all lesions except for the enlarged mesenteric lymph node with higher metabolic activity. Serum CEA remained normal during the follow-up. Postoperative pathology of the mesenteric lymph node confirmed Castleman disease.
两年前，一位 64 岁男性进行了 18 F-FDG PET/CT 检查以分期直肠癌。除了高代谢直肠病变外，图像还显示肠系膜淋巴结活性增强和多个肺部结节 FDG 摄取轻度增加，高度怀疑转移。手术后和多次化疗后，随访 18 F-FDG PET/CT 显示除代谢活性更高的增大肠系膜淋巴结外，所有病变均缓解。在随访期间，血清 CEA 保持正常。肠系膜淋巴结的术后病理证实为 Castleman 病。
