osteoma

osteoma
A benign, slow-growing mass of mature, predominantly lamellar bone, usually arising from the skull or mandible. [osteo- + G. -oma, tumor]
- o. cutis cutaneous ossification usually secondary to calcification in foci of degeneration in tumors or inflammatory lesions or, rarely, primary new bone formation in normal skin, often associated with Albright hereditary ostrodystrophy.
- dental o. an exostosis arising from the root of a tooth.
- giant osteoid o. SYN: osteoblastoma.
- o. medullare an o. containing spaces that are filled (or partly filled) with various elements of bone marrow.
- osteoid o. a painful benign neoplasm that usually originates in one of the bones of the lower extremities, especially the femur or tibia of adolescent and young adult persons; characterized by a nidus (usually no larger than 1 cm in diameter) that consists of osteoid material, vascularized osteogenic stroma, and poorly formed bone; around the nidus there is a relatively large zone of reactive thickening of the cortex.
- o. spongiosum an o. that consists chiefly of cancellous bone tissue.

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os·te·o·ma .äs-tē-'ō-mə n, pl -mas also -ma·ta -mət-ə a benign tumor composed of bone tissue

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n.
a benign bone tumour. A cancellous osteoma (exostosis) is an outgrowth from the end of a long bone, usually rising to a point. A compact osteoma (ivory tumour) is usually harmless but it may rarely compress surrounding structures, as within the skull. An osteoid osteoma is an overgrowth of bone-forming cells, usually causing pain in the middle of a long bone. Compact and osteoid osteomas are treated by surgical excision.

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os·te·o·ma (os″te-oґmə) [oste- + -oma] a benign, slow-growing tumor composed of well-differentiated, densely sclerotic, compact bone, usually arising in membrane bones, particularly the skull and facial bones.

Medical dictionary. 2011.

Look at other dictionaries:

  • Osteoma — Classification and external resources ICD 10 C40 C41 ICD 9 213.0 ICD O: 9180/0, 9191/0, 9200/0 An osteoma (plural: osteomata ) is a new piece of bone usually growing on another piece of …   Wikipedia

  • osteoma — m. oncol. Tumor óseo benigno de crecimiento lento y formado por tejido óseo. Si el tumor se desarrolla sobre una parte ósea recibe el nombre de osteoma homoplásico, mientras que si lo hace en otro tejido se denomina heteroplásico. Medical… …   Diccionario médico

  • Osteoma — Os te*o ma, n.; pl. {Osteomata}. [NL. See {Osteo }, and { oma}.] (Med.) A tumor composed mainly of bone; a tumor of a bone. [1913 Webster] …   The Collaborative International Dictionary of English

  • osteoma — |ô| s. m. [Medicina] Tumor composto de tecido ósseo.   ‣ Etimologia: osteo + oma …   Dicionário da Língua Portuguesa

  • osteoma — sustantivo masculino 1. Área: medicina Tumor benigno formado por tejido óseo …   Diccionario Salamanca de la Lengua Española

  • osteoma — (Del gr. ὀστέον, hueso, y oma). m. Med. Tumor de naturaleza ósea o con elementos de tejido óseo …   Diccionario de la lengua española

  • osteoma — [äs΄tē ō′mə] n. pl. osteomas or osteomata [äs΄tē ō′mə tə] [ModL: see OSTEO & OMA] a tumor composed of bony tissue …   English World dictionary

  • Osteoma — (Del gr. osteon, hueso + oma, tumor.) ► sustantivo masculino MEDICINA Tumor de naturaleza ósea o con elementos de tejido óseo. * * * osteoma (de «oste » y « oma») m. Med. *Tumor de naturaleza ósea o con elementos de tejido óseo. * * * osteoma.… …   Enciclopedia Universal

  • osteoma — a benign bone tumour, of which there are two types. An osteoid osteoma most commonly occurs in the shaft of the femur or tibia. It is small, solitary, and relatively common; its characteristic feature is that it causes nocturnal pain that is… …   The new mediacal dictionary

  • osteoma — {{#}}{{LM O28437}}{{〓}} {{[}}osteoma{{]}} ‹os·te·o·ma› {{《}}▍ s.m.{{》}} Tumor de naturaleza ósea o con elementos del tejido óseo. {{★}}{{\}}ETIMOLOGÍA:{{/}} Del griego ostéon (hueso) y oma (tumor) …   Diccionario de uso del español actual con sinónimos y antónimos

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