Abstract
This article briefly reviews malignant bone tumors, diffuse marrow infiltrating diseases,
and other benign bone diseases with fluorodeoxyglucose (FDG) uptake on positron emission
tomography/computed tomography (PET/CT) that should be differentiated from malignant
tumors. Clinical use of FDG PET/CT in (1) primary malignant bone tumors including
osteosarcoma, malignant fibrous histiocytoma, and primary bone lymphoma, (2) hematopoietic
tumors with bone marrow involvement, such as plasmacytoma, multiple myeloma, lymphoma
and leukemia, and (3) benign tumors and tumor-like lesions including hemangioma, neurogenic
tumor, fibrous dysplasia, and nodular fasciitis are presented, with an emphasis on
various imaging findings on FDG PET/CT. Benign tumors and tumor-like conditions are
often incidentally detected on FDG PET/CT in serial follow-up studies of cancer patients
and should be differentiated from metastasis.
Keywords
F-18 fluorodeoxyglucose - PET/CT - bone tumor - malignant - benign