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A tumor composed of blood vessels. Also known as capillary angioma.



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.

References in periodicals archive ?
1] One important factor in the pathogenesis of granulation tissue-type hemangiomas may be the excessive production of local tumor angiogenesis factors as a result of minor trauma or underlying cutaneous disease.
However, HIF-1[alpha] mRNA and protein levels remarkably decreased in the propranololtreated hemangiomas (Figure 1A and B).
Of course, the breakthrough of propranolol for hemangioma treatment profoundly changed hemangioma management, shifting "state of the art treatment" from systemic steroids (and perhaps laser) to an incredibly effective medical therapy newly studied, tested, and approved by regulatory authorities.
However, both laryngocles and laryngeal hemangiomas can present with coughing fits, dysphonia, dysphagia, globus sensation, and dyspnea.
Ultrapotent topical corticosteroid treatment of hemangiomas of infancy.
Intramuscular hemangiomas generally occur in adolescents and young adults and do not have a significant difference in sex predominance (1).
Es de esperarse que grandes defectos en la formacion de grandes vasos correspondan a hemangiomas segmentales extensos; y por otra parte, el comprometimiento del flujo vascular a regiones o campos en pleno desarrollo pueda originar anomalias cerebral, cerebelar y oculares como las observadas en PHACES.
The lesion was resected and the diagnosis of cavernous type hemangioma was confirmed by pathology studies.
Regarding pathogenesis of hemangiomas two theories dominate.
We report a case of synovial hemangioma presenting as a painful locked knee.
Many important and management-altering discoveries have occurred regarding hemangiomas in the past decade.
PHACE syndrome: the association of posterior fossa brain malformations, hemangiomas, arterial anomalies, coarctation of the aorta and cardiac defects, and eye abnormalities.