From the Department of Nuclear Medicine (PET-CT Center), National Cancer Center, National Clinical Research Center for Cancer, Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing.
Clin Nucl Med. 2023 Jun 1;48(6):538-539. doi: 10.1097/RLU.0000000000004633. Epub 2023 Mar 26.
Renal cell carcinoma (RCC) with isolated humeral metastasis as the initial presentation is rare. We reported FDG PET/CT findings of isolated humeral metastasis from RCC in a 63-year-old man with right upper arm pain as the initial presentation. The bone scanning in an outside hospital showed that the focus with increased uptake of the right humerus was possibly malignant. FDG PET/CT showed that the right humeral mass had intense activity, and there was an additional FDG lesion in the lower pole of the right kidney. The mass of the right humerus was later confirmed as humeral metastasis from RCC by pathological examination.
孤立性肱骨转移作为初始表现的肾细胞癌（RCC）较为罕见。我们报道了一例 63 岁男性患者，以右上臂疼痛为首发表现，伴有孤立性肱骨转移的 FDG PET/CT 表现。外院骨扫描显示右肱骨摄取增加的病灶可能为恶性病灶。FDG PET/CT 显示右肱骨肿块活性明显增高，且右肾下极有额外的 FDG 摄取病灶。右肱骨肿块后来通过病理检查证实为 RCC 的肱骨转移。
