Angioma is a benign tumor originating from vessels. Angioma, growing out of the blood vesselsis called hemangiomas, lymph - lymphangioma (see).

Angioma (angioma; from the Greek. angeion - vessel), a benign tumor growing from the blood or lymph vessels. Angioma localized in various organs and tissues (skin, adipose tissue, the liver, muscles, bones, brain, kidneys); it may be single or multiple. In the latter case, the disease is called angiomatosis. In children angioma occur more frequently.
Angioma are tumors of various sizes and shapes. Hemangioma (see)- crimson red or bluish color, lymphangioma (see) - colorless. Histologically angioma built of Mature vessels. Angioma containing large amounts of fibrous connective tissue, called angiofibroma (see).
Although angiomas are histologically well-differentiated tumors, some of them, such as capillary hypertrophic A., are infiltrating, destructive growth recur; therefore, the clinical course of A. not always favourable. In rare cases, there comes a cure itself, when due to thrombosis and subsequent organization of the tumor thrombi turns into scar tissue.
Most of the angioma refers to disontogenesis tumors type hamartoma; to the true blastoma shall be assigned such vascular tumors as angioedema, Pereloma, angiosarcoma. However, to distinguish the true vascular tumors from proliferating disabilaty vessels is not always possible.
Treatment and surgery. If excision A. not possible, use a thermo - and electrocoagulation, cryotherapy, radiotherapy, treatment of radioactive isotope of phosphorus, cobalt or cesium. Cm. also the Tumor.