title: Bone formation in chondrodermatitis nodularis helicis.
mesh_terms: D000368:Aged; D002114:Calcinosis / Q000473:pathology*; D002357:Cartilage Diseases / Q000473:pathology*; D003872:Dermatitis / Q000473:pathology*; D004425:Ear Cartilage / Q000473:pathology*; D004427:Ear Diseases / Q000473:pathology; D004431:Ear, External / Q000473:pathology*; D006801:Humans; D008297:Male; D008875:Middle Aged