From the Departments of Pulmonary and Critical Care Medicine.
Nuclear Medicine, Henan Provincial People's Hospital, Zhengzhou University People's Hospital, Zhengzhou, Henan, China.
Clin Nucl Med. 2022 Jan 1;47(1):93-95. doi: 10.1097/RLU.0000000000003860.
Collecting duct carcinoma is a rare and highly aggressive renal tumor with a poor prognosis. The presence of metastasis is common at collecting duct carcinoma diagnosis, but widespread metastases involving multiple soft tissues are extremely unusual. Here, we describe a 65-year-old man presenting with fever and lower leg pain as the first and main manifestations. After receiving anti-infective therapy for over 6 weeks without improvement, 18F-FDG PET/CT revealed a primary renal carcinoma with widespread metastases. A biopsy from the tubercle of fascicular spinal muscle indicated a diagnosis of collecting duct carcinoma.
集合管癌是一种罕见且高度侵袭性的肾肿瘤，预后不良。集合管癌诊断时通常已经发生转移，但广泛转移至多个软组织的情况极为罕见。本文报道了 1 例以发热和小腿疼痛为首发和主要表现，且抗感染治疗 6 周以上无效的 65 岁男性患者。18F-FDG PET/CT 显示原发性肾癌伴广泛转移。腰椎多裂肌肌束结节活检提示为集合管癌。
