The following report describes a patient with bony nodules in the skin and a rare hereditary anomaly of bone. She was presented at a meeting of the North of England Dermatological Society in October, 1960, when none of those attending had seen a similar combination.
Osteoma cutis, the presence of true bone in the skin, is rare. This term has previously embraced all bony deposits within the integument, irrespective of the underlying pathology. "Osteoma" implies a benign bony newgrowth (Eller and Eller1 ), and should not be applied to bony metaplasia, as has been done in the past, with much resulting confusion.Primary osteoma cutis may be defined as a true bony newgrowth arising within the skin from bone-forming tissue, showing no tendency to invade or metastasize. The number of such cases is small, and they have been variously reported as osteoma cutis, osteomatosis cutis, osteosis cutis, disseminated
DONALDSON EM, SUMMERLY R. Primary Osteoma Cutis and Diaphyseal Aclasis. Arch Dermatol. 1962;85(2):261–265. doi:10.1001/archderm.1962.01590020101011
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