A<unk>  is a tumor of<unk>  origin; a soft tissue growth that can be either benign or malignant, formed from blood vessels or lymph vessels. Examples of<unk> s include hemangiomas, lymphangiomas, hemangioendotheliomas, Kaposi's sarcomas, angiosarcomas, and hemangioblastomas. An angioma refers to any type of benign<unk> . Some<unk> s can be associated with serious blood-clotting disorders, making correct diagnosis critical. A<unk>  may be described in terms of being highly<unk> ized, or poorly<unk> ized, referring to the degree of blood supply to the tumor.
Vascular tumor
Angioma
Lymphangioma
Aneurysm
Benign tumor
Venous thrombosis
Vascular malformation
Hemangioma