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osteoma (os″te-o´mә) a tumor, benign or malignant, composed of bony tissue, such as a hard tumor of bonelike structure that develops on a bone (homoplastic osteoma) or somewhere else (heteroplastic osteoma). Symptoms include pain, swelling, and disability in the area of the diseased bone. compact osteoma
a small, dense, compact tumor of mature lamellar bone with little medullary space, usually in the craniofacial or nasal bones. osteoma cutis
progressive dermal ossification during childhood, with development of hard, round to irregular nodules representing islands
of heterotopic bone within the dermis or subcutis, followed by coalescence of the lesions into plaques, and later by invasion
of ossification into deep connective tissues. It may be sporadic or inherited as an autosomal dominant trait. Called also
progressive osseous heteroplasia. osteoma durum
, ivory osteoma
compact osteoma.
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