title: From ankylosis to pencil-in-cup deformity in psoriatic arthritis: a case report.
abstract: A 56-year-old woman with psoriatic arthritis is presented whose initially ankylosed digit was later found to develop pencil-in-cup change. The patient was treated over that period with etanercept and had no signs of active arthritis. The possible mechanisms for these changes are discussed.
authors.affiliation: From the Psoriatic Arthritis Program, Centre for Prognosis Studies in the Rheumatic Diseases, Toronto Western Hospital, Toronto, Ontario, Canada.
authors.forename: L
authors.initials: L
authors.lastname: Eder
authors.forename: V
authors.initials: V
authors.lastname: Chandran
authors.forename: D D
authors.initials: DD
authors.lastname: Gladman
mesh_terms: D000844:Ankylosis / Q000188:drug therapy / Q000209:etiology* / Q000473:pathology; D018501:Antirheumatic Agents / Q000627:therapeutic use; D015535:Arthritis, Psoriatic / Q000150:complications* / Q000188:drug therapy / Q000473:pathology; D005260:Female; D050278:Finger Phalanges / Q000000981:diagnostic imaging; D006227:Hand Deformities, Acquired / Q000000981:diagnostic imaging / Q000209:etiology* / Q000473:pathology; D006801:Humans; D008727:Methotrexate / Q000627:therapeutic use; D008875:Middle Aged; D011859:Radiography; D050277:Toe Phalanges / Q000000981:diagnostic imaging; D016896:Treatment Outcome
chemical_list: D018501:Antirheumatic Agents; D008727:Methotrexate