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A tumor composed of blood vessels. Also known as capillary angioma.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.
The following article is from The Great Soviet Encyclopedia (1979). It might be outdated or ideologically biased.



a benign tumor of the blood vessels. Hemangiomas generally arise in early childhood from congenital redundant vascular rudiments. Hereditary and hormonal factors also play a part in the formation of hemangiomas, which are found most often in women and children. Hemangiomas of the cutaneous tissues are most common, but they sometimes spread to the underlying organs, passing from the skin to the mucous membrane and impairing the function of organs and tissues. They may also affect muscles and tendons, bone, and internal organs (most frequently the liver). Superficial hemangiomas look like pinkish red or purplish blue strawberry marks. Hemangiomas may ulcerate and bleed. Treatment involves surgery or removal by chemical, thermal, or radiation therapy.

The Great Soviet Encyclopedia, 3rd Edition (1970-1979). © 2010 The Gale Group, Inc. All rights reserved.
References in periodicals archive ?
Infantile hemangiomas (IH), now the preferred term for these proliferative vascular lesions, are quite common, with an occurrence rate of 4%-5% in infants.
Here, we describe an unusual case of a child presenting with unilateral severe nasal bleeding that proved to be a lobular hemangioma lesion arising from the posterior portion of the inferior turbinate.
Some hemangiomas, particularly those on the face or those that are very large, need treatment early to prevent them from interfering with body functions or causing permanent scars.
Infantile hepatic hemangioma (IHH) historically called "hemangiomaendothelioma" refers to visceral manifestation of infantile hemangioma.
Most cases of spinal dumbbell hemangiomas described in the literature so far were resected using a posterior-only approach or a combined approach with thora-cotomy.
Diffuse hepatic hemangiomas are associated with the highest risk of morbidity and mortality, secondary to massive infiltration of the hepatic parenchyma with innumerable hemangiomas.
Congenital hemangiomas are rare benign vascular tumors with clinical and histologic features that differ from infantile hemangiomas; they are present at birth, do not manifest the classic triphasic growth pattern associated with infantile hemangiomas and are GLUT1 negative.
Cardiac hemangiomas. Ann Thorac Surg 1993;56:390-4.
Hemangiomas comprise 1.5% of all laryngeal anomalies (5).
Infantile hemangioma is originated from placental trophoblast, fact or fiction?
Skin lesions may turn out to be a harmless hemangioma, or a deadly hemangiosarcoma.
At 16 months of age, she was restarted on propranolol at 2 mg/kg/day after showing rebound proliferation of the hemangiomas with the development of deep subcutaneous hemangiomas over the parotid, mastoid, and submandibular areas.