Superscan-like hypermetabolic lesions on delayed FDG PET/CT imaging in a patient with lung cancer.
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.
Department of Radiology, Philadelphia VA Medical Center, 3900 Woodland Ave, Philadelphia, PA 19104, USA.
Gang
G
Cheng
Abass
A
Alavi
Esther
E
Lim
Scott R
SR
Akers
D000368:Aged; D019788:Fluorodeoxyglucose F18; D006801:Humans; D008175:Lung Neoplasms / Q000000981:diagnostic imaging* / Q000378:metabolism* / Q000473:pathology; D008297:Male; D064847:Multimodal Imaging / Q000379:methods*; D049268:Positron-Emission Tomography; D013997:Time Factors; D014057:Tomography, X-Ray Computed
D019788:Fluorodeoxyglucose F18