title: Trichoepithelioma, cystic acne and 13-cis-retinoic acid.
abstract: Treatment with 13-cis-retinoic acid during 12 weeks of a patient with multiple trichoepitheliomas and acne cystica et comedonica did not affect the number of trichoepitheliomas. The cystic lesions, most of them trichoepitheliomas with only a few non-inflammatory cystic acne lesions, were not affected by this treatment.
mesh_terms: D000152:Acne Vulgaris / Q000150:complications / Q000188:drug therapy*; D000328:Adult; D005145:Face; D006801:Humans; D015474:Isotretinoin; D008297:Male; D009333:Neck; D012878:Skin Neoplasms / Q000150:complications / Q000188:drug therapy*; D014212:Tretinoin / Q000627:therapeutic use*
chemical_list: D014212:Tretinoin; D015474:Isotretinoin