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hemangioma

[hi-man-jee-oh-muh] /hɪˌmæn dʒiˈoʊ mə/
noun, plural hemangiomas, hemangiomata
[hi-man-jee-oh-muh-tuh] /hɪˌmæn dʒiˈoʊ mə tə/ (Show IPA).
Pathology
1.
See under angioma.
Origin
1885-1890
1885-90; < Neo-Latin; see hem-, angioma

angioma

[an-jee-oh-muh] /ˌæn dʒiˈoʊ mə/
noun, plural angiomas, angiomata
[an-jee-oh-muh-tuh] /ˌæn dʒiˈoʊ mə tə/ (Show IPA).
Pathology
1.
a benign tumor consisting chiefly of dilated or newly formed blood vessels (hemangioma) or lymph vessels (lymphangioma)
Origin
1870-75; angi- + -oma
Related forms
angiomatous
[an-jee-om-uh-tuh s, -oh-muh-] /ˌæn dʒiˈɒm ə təs, -ˈoʊ mə-/ (Show IPA),
adjective
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Based on the Random House Dictionary, © Random House, Inc. 2014.
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British Dictionary definitions for hemangiomata

angioma

/ˌændʒɪˈəʊmə/
noun (pl) -mas, -mata (-mətə)
1.
a tumour consisting of a mass of blood vessels (haemangioma) or a mass of lymphatic vessels (lymphangioma)
Derived Forms
angiomatous, adjective
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
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Word Origin and History for hemangiomata

angioma

n.

1867, medical Latin, from angio- + -oma.

Online Etymology Dictionary, © 2010 Douglas Harper
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hemangiomata in Medicine

angioma an·gi·o·ma (ān'jē-ō'mə)
n. pl. an·gi·o·mas or an·gi·o·ma·ta (-mə-tə)
A tumor composed chiefly of lymphatic vessels or blood vessels.

hemangioma he·man·gi·o·ma (hĭ-mān'jē-ō'mə)
n. pl. he·man·gi·o·mas or he·man·gi·o·ma·ta (-mə-tə)
A congenital benign skin lesion consisting of dense, usually elevated masses of dilated blood vessels.

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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Encyclopedia Article for hemangiomata

angioma

congenital mass of blood vessels that intrudes into bone or other tissues, causing tissue death and, in the case of bone, structural weakening. Angiomas of the bone are often associated with angiomas of the skin or muscles. Most angiomas remain asymptomatic, but they may cause collapse of the vertebrae if they occur in the spine, and hemorrhage is a danger in some locations that expose them to stress. Treatment is usually by radiation, which causes clot formation within the mass of vascular tissue; the clot will then gradually calcify. Surgery also may be performed but involves a risk of hemorrhage.

Learn more about angioma with a free trial on Britannica.com
Encyclopedia Britannica, 2008. Encyclopedia Britannica Online.
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