Department of Radiology, Philadelphia VA Medical Center, 3900 Woodland Ave, Philadelphia, PA 19104, USA.
Clin Nucl Med. 2012 Sep;37(9):912-3. doi: 10.1097/RLU.0b013e31825b23d5.
A 69-year-old man with a lung mass underwent multiple-time-point FDG PET/CT imaging for diagnostic evaluation. The initial PET imaging (performed at 1 hour after tracer injection) revealed equivocal bone marrow uptake in the right iliac bone and proximal femurs in addition to lung and mediastinal lesions. The 3-hour delayed PET imaging, however, demonstrated widespread bone marrow metastases. Biopsies of the right lung mass and right iliac bone marrow were later performed and revealed a poorly differentiated squamous cell carcinoma in both sites. This case indicates the value of delayed FDG PET in detecting superscan-like hypermetabolic bone marrow lesions in patients with lung cancer.
一位 69 岁男性因肺部肿块接受多次 FDG PET/CT 影像学检查以进行诊断评估。最初的 PET 成像（在示踪剂注射后 1 小时进行）显示右侧髂骨和股骨近端除肺部和纵隔病变外，骨髓摄取呈不确定。然而，3 小时延迟 PET 成像显示广泛的骨髓转移。随后对右肺肿块和右髂骨髓活检显示两个部位均为低分化鳞状细胞癌。该病例表明延迟 FDG PET 在检测肺癌患者类似超级扫描的高代谢性骨髓病变中的价值。
