title: Severe nodulocystic acne causing "ring lesions" on mammograms.
authors: A C
authors: AC
authors: Westeren
authors: M L
authors: ML
authors: Santiago
authors: O S
authors: OS
authors: Cigtay
mesh_terms: D000152:Acne Vulgaris; D000328:Adult; D001941:Breast Diseases; D005260:Female; D006801:Humans; D008327:Mammography