(os'tē-ō-stē'ă-tō'mă), A benign mass, usually a lipoma or sebaceous cyst, in which small foci of bony elements are present. [osteo- + G. stear, suet, fat, + -oma, tumor]
osteosteatoma
(ŏs″tē-ō-stē″ă-tō′mă) [″ + stear, fat, + oma, tumor] A benign fatty tumor with bony elements.