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EntityQ1675957· pop 24· linked from 228 articles

An osteoma (plural osteomas or less commonly osteomata) is a new piece of bone usually growing as a benign tumour on another piece of bone, typically the skull. When grown on other bone it is known as "homoplastic osteoma"; on other tissue it is called "heteroplastic osteoma".

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Osteoma
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Ostéome.jpg
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Osteoma of external auditory meatus

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Osteoma
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An osteoma (plural osteomas or less commonly osteomata) is a new piece of bone usually growing as a benign tumour on another piece of bone, typically the skull. When grown on other bone it is known as "homoplastic osteoma"; on other tissue it is called "heteroplastic osteoma".

Osteoma represents the most common benign neoplasm of the nose and paranasal sinuses. The cause of osteomas is uncertain, but commonly accepted theories propose embryologic, traumatic, or infectious causes. They are present in Gardner's syndrome.

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