Lexic.us

Definition of Haemangioma

1. Noun. Benign angioma consisting of a mass of blood vessels; some appear as birthmarks.

Definition of Haemangioma

1. Noun. (alternative spelling of hemangioma) ¹

¹ Source: wiktionary.com

Medical Definition of Haemangioma

1. A haemangioma or arteriovenous malformation is a tangle of abnormal vessels that forms an abnormal communication between the arterial and venous systems. most are congenital and result from improperly formed angioblastic tissue in the foetus. If large enough, they may produce a shunt of sufficient magnitude to raise the cardiac output. Arteriovenous malformations may occur in the brain, brainstem and spinal cord, where they may cause headaches, seizures or bleeding (subarachnoid haemorrhage). Red or purple-coloured vascular skin markings that develop shortly after birth. most are usually painless and benign. Some lesions (cavernous haemangiomas) will disappear or become harder to see as the child approaches school age. Localised steroid injections have been used successfully to reduce the size of a birthmark. This entry appears with permission from the Dictionary of Cell and Molecular Biology (11 Mar 2008)

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Lexicographical Neighbors of Haemangioma

Literary usage of Haemangioma

Below you will find example usage of this term as found in modern and/or classical literature:

1. Surgery, Gynecology & Obstetrics by The American College of Surgeons, Franklin H. Martin Memorial Foundation (1922)
"It had the gross appearance and feel of oedematous myoma, but on section and microscopic examination it proved to be a haemangioma. The patient is having 'A ..."

2. The British Journal of Dermatology by British Association of Dermatology (1893)
"Various writers have described a change which occasionally may be observed to take place in haemangioma of the skin or mucous membrane, consisting in the ..."

3. A Text-book of Pathology by William George MacCallum (1916)
"A haemangioma is a tumor composed essentially of blood-channels, ... A true haemangioma is distinguished from a mere dilatation of capillaries or venules ..."

4. Diseases of the eye and disorders of speech in childhood by Oskar Everbusch, Max Nadoleczny (1914)
"haemangioma cavernosum is characterized by a dark red or blue- red swelling. ... haemangioma requires removal, if it interferes with lachrymal absorption, ..."

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