title: [The psoriatic great toe or the psoriatic onycho-pachydermo-periostitis of great toe (OP3gt)].
abstract: The onycho-pachydermo-periostitis of the great toe is a characteristic feature of psoriatic arthritis first described by Fournié in 1980. In the affected patients, the great toe involvement is characterised by a relevant osteo-periostitis of the distal phalanx, a thickening of the distal soft tissues associated with a psoriatic onychopathy. In most cases, the distal interphalangeal joint is spared. Radiographic and scintigraphic osteo-periostitis of distal phalanx of the great toe are frequent, being found in about 44% of patients with psoriatic arthritis. However, clinical manifestations, with inflammatory inflammation of the great toe, are rare.
authors.affiliation: Cattedra ed UOC di Reumatologia, Università di Padova, 35128 Padova. roberta.ramonda@unipd.it
authors.forename: R
authors.initials: R
authors.lastname: Ramonda
authors.forename: P
authors.initials: P
authors.lastname: Zucchetta
authors.forename: C
authors.initials: C
authors.lastname: Contessa
authors.forename: L
authors.initials: L
authors.lastname: Punzi
mesh_terms: D015535:Arthritis, Psoriatic / Q000175:diagnosis; D003937:Diagnosis, Differential; D006801:Humans; D009260:Nail Diseases / Q000175:diagnosis; D010004:Osteoarthropathy, Primary Hypertrophic / Q000000981:diagnostic imaging; D010522:Periostitis / Q000175:diagnosis; D011859:Radiography; D011877:Radionuclide Imaging; D014034:Toes / Q000000981:diagnostic imaging