Acne necrotica due to phenylbutazone.
D000152:Acne Vulgaris / Q000209:etiology*; D005499:Folliculitis; D006801:Humans; D010653:Phenylbutazone / Q000009:adverse effects*; D017192:Skin Diseases, Bacterial
D010653:Phenylbutazone
ACNE/etiology and pathogenesis; PHENYLBUTAZONE/injurious effects