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FDG-PET evaluation of chondromyxoid fibroma of left ilium.

Chondromyxoid fibroma is a rare benign tumor, which is composed of immature myxoid mesenchymal tissue with features of early primitive cartilaginous differentiation, accounting for less than 1% of all primary bone tumors. Chondromyxoid fibromas arising from the ilium are relatively rare. Reports on fluorodeoxyglucose-positron emission tomography (FDG-PET) imaging for chondromyxoid fibroma are limited. We present a case of a chondromyxoid fibroma of the left ilium with fluorodeoxyglucose-positron emission tomography (FDG-PET) findings, which showed increased accumulation of fluorodeoxyglucose in spite of its characteristic benign pathology. The maximum standardized uptake value (SUV) of the mass was 3.20.