title: Symmetrical melanonychia of the thumbnails associated with PUVA in psoriasis.
authors.forename: Asli Feride
authors.initials: AF
authors.lastname: Kaptanoglu
authors.forename: Tuba
authors.initials: T
authors.lastname: Oskay
mesh_terms: D000328:Adult; D003937:Diagnosis, Differential; D006801:Humans; D008297:Male; D009260:Nail Diseases / Q000175:diagnosis* / Q000209:etiology / Q000473:pathology; D011701:PUVA Therapy / Q000009:adverse effects*; D010859:Pigmentation Disorders / Q000175:diagnosis* / Q000209:etiology / Q000473:pathology; D011565:Psoriasis / Q000188:drug therapy*