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Article
July 1974

Postacne Osteoma Cutis: X-ray Diffraction Analysis

Arch Dermatol. 1974;110(1):113-114. doi:10.1001/archderm.1974.01630070077022
Abstract

Osteoma cutis may occur in numerous skin disorders including long-standing acne. An unusual type of postacne osteoma cutis presents with small pigmented nodules in the area of involvement. X-ray diffraction analysis was carried out on an osteoma surgically removed from a patient with moderately severe long-standing acne. The analysis results confirmed that the crystalline component of the specimen is hydroxyapatite, a primary constituent of true bone.

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