Metabolic activity assessment of cardiac angiosarcoma by 18FDG PET-CT.

Angiosarcoma is a neoplasm of an endothelial origin, which could arise from blood or lymphatic vessels, respectively hemangiosarcoma or lymphosarcoma. They account for only 0.1% of adult malignancies and represent 1–2% of all soft tissue sarcomas in humans [1]. Most tumours are malignant and readily give distant metastases because they are composed of rapidly proliferating and extensively infiltrating anaplastic cells. They can occur in any organ of the body and the most common form is a cutaneous angiosarcoma [2]. We report a PET-CT study of a rare case of cardiac angiosarcoma, which was initially misdiagnosed as heart inflammation.