From the Department of Nuclear Medicine, Zhongshan Hospital, Fudan University, Shanghai, China.
Clin Nucl Med. 2023 Jul 1;48(7):608-609. doi: 10.1097/RLU.0000000000004677. Epub 2023 May 11.
A 50-year-old man with T4 N2 M1 poorly differentiated adenocarcinoma of the rectum underwent neoadjuvant chemotherapy, surgical resection, and subsequent chemotherapy. Six months after surgery, routine follow-up CT revealed the presence of abdominal wall subcutaneous nodules associated with bilateral pulmonary and renal nodules, indicating metastases. Further 18 F-FDG PET/CT scan revealed a high number of subcutaneous and muscle metastases. Metastasis of rectal adenocarcinoma to subcutaneous tissue or skeletal muscle is considered rare.
一位 50 岁的男性，患有 T4 N2 M1 分化差的直肠腺癌，接受了新辅助化疗、手术切除和随后的化疗。手术后 6 个月，常规随访 CT 显示腹壁皮下结节与双侧肺和肾结节并存，提示转移。进一步的 18 F-FDG PET/CT 扫描显示大量皮下和肌肉转移。直肠腺癌转移至皮下组织或骨骼肌被认为较为罕见。
