Primary Aortic Epithelioid Angiosarcomas With Metastatic Disease Detected by 18F-FDG PET/CT

Epithelioid angiosarcoma in the aortic arch with metastatic disease is extremely rare. We report a case of 63-year-old man with suspected bone metastases who underwent 18F-FDG PET/CT for seeking the potential primary tumor. PET/CT demonstrated intense FDG uptake in the aortic arch with multiple FDG-avid lesions involving the lung, lymph nodes, and bones. Finally, the diagnosis of primary aortic epithelioid angiosarcomas with metastatic disease was confirmed.