A vascular tumor is a tumor of vascular origin; a soft tissue growth that can be either benign or malignant, formed from blood vessels or lymph vessels. Examples of vascular tumors include hemangiomas, lymphangiomas, hemangioendotheliomas, Kaposi's sarcomas, angiosarcomas, and hemangioblastomas. Vascular anomalies are divided into two main groups: tumors and malformations.The most frequent benign vascular tumors are hemangiomas of the cavernous, capillary, and capillary-lobular type (pyogenic or telangiectasic granuloma). The extra growth forms a complex mass (tumor). After birth, the cells can keep increasing and the mass can get bigger. A vascular tumor is a growth of vascular origin, formed from blood vessels. Some are benign and some are malignant. Vascular neoplasms are unusual and, as such, pose a diagnostic and treatment challenge to the vascular surgeon. rteriovenous hemangioma is a benign cutaneous vessel proliferation that presents as a red papule that can mimic other vascular tumors. Vascular malformations are no real tumors and can be divided into low- or high-flow lesions. The majority of vascular tumors have a slow growth rate, and the size of the tumor increases with age.