Bilateral Tibial Osteofibrous Dysplasia on 18F-FDG PET/CT

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Abstract

A 17-year-old girl had pain in the right front lower leg while road racing 2 months earlier. Radiography and CT showed osteolytic lesions in the medial part of the bilateral tibia. Bone scintigraphy showed focally increased radiotracer uptake in the bilateral tibia. The lesions showed hypermetabolism on FDG PET/CT. Osteofibrous dysplasia was suspected from the radiographic findings, but adamantinoma or metastases could not be excluded. Surgical biopsies were performed, and histopathologic studies confirmed the diagnosis of bilateral osteofibrous dysplasia.

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