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n. pl. os·te·o·mas or os·te·o·ma·ta (-mə-tə)
A benign tumor composed of bony tissue, often developing on the skull.
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.


n, pl -mata (-mətə) or -mas
(Pathology) a benign tumour composed of bone or bonelike tissue
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014


(ˌɒs tiˈoʊ mə)

n., pl. -mas, -ma•ta (-mə tə)
a benign tumor composed of osseous tissue.
Random House Kernerman Webster's College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved.
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.osteoma - a slow growing benign tumor of consisting of bone tissue; usually on the skull or mandible
Based on WordNet 3.0, Farlex clipart collection. © 2003-2012 Princeton University, Farlex Inc.


n osteoma m
English-Spanish/Spanish-English Medical Dictionary Copyright © 2006 by The McGraw-Hill Companies, Inc. All rights reserved.
References in periodicals archive ?
offer a detailed discussion of their use of ranibizumab to treat secondary choroidal neovascularization in a rare case of choroidal osteoma.
Peripapillary CNVM are also known to occur with other diseases including ocular histoplasmosis (OHS), angioid streaks, pars planitis, optic disc drusen, choroidal osteoma, and pattern dystrophies [1].
Lai, "Long-term follow-up of intravitreal ranibizumab for the treatment of choroidal neovascularization due to choroidal osteoma," Case Reports in Ophthalmology, vol.
Choroidal osteoma is a rare benign intraocular tumor characterized by heterotopic bone of the choroid.
Here, we report a case of atypical dome-shaped choroidal osteoma diagnosed by a histopathological finding from the surgically extracted tumor tissue.
Choroidal osteoma was first described by Van Dyk at the Verhoeff society meeting in 1975 [1].
On fundoscopic investigation the choroidal osteoma is usually located in the peripapillary or juxtapapillary regions and may extend to the macula.
The differential diagnosis of peripapillary choroidal neovascularization in young patients includes optic nerve drussen, peripapillary pseudopodal pigment epithelial and choroidal atrophy, angioid streaks, pattern dystrophy, choroidal osteoma and uveitis.
The lesion was diagnosed as choroidal osteoma. The patient received 3 injections of intravitreal ranibizumab.
Keywords: Choroidal osteoma, choroidal neovascularization, intravitreal ranibizumab
Presence of bilateral limbal dermoids and choroidal osteomas in a family with inherited limbal dermoids.