Diffuse Skeletal Hemangiomatosis Mimicking Metastastic Disease on 18F-FDG PET/CT

Diffuse skeletal hemangiomatosis is a rare vascular proliferation disorder involving multiple bones and may be confused with metastatic bone malignancy. We present a case of a 53-year-old man suffering back and proximal right femur pain underwent 18F-FDG PET/CT scan. Multiple hypermetabolic lesions of bone were concerning for metastatic carcinoma. Since no primary malignancy was found, open biopsy was performed and histologic examination led to a diagnosis of diffuse skeletal angiomatosis. This case highlighted the importance of including diffuse skeletal hemangiomatosis in the differential diagnosis of multiple hypermetabolic skeletal lesions on 18F-FDG PET/CT.

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