title: [Psoriatic onycho-pachydermo-periostitis of the big toe. Anatomo-clinical study and physiopathogenic approach apropos of 4 cases].
abstract: The authors report 4 cases of rheumatoid psoriasis in which involvement of the great toe, associating psoriatic onychosis, thickening of the distal soft tissues and osteo-periostitis of the distal phalanx without lesions of the interphalangeal joint, is the result of a direct repercussion of the ungual lesion on the distal phalanx. This is explained by very close anatomic links between nail and distal phalanx. They advocate the term of psoriatic onycho-pachydermo-periostitis of the great toe or OP3GT, when referring to this radio-clinical syndrome highly evocative of rheumatoid psoriasis.
authors.affiliation: Clinique de Rhumatologie, CHU Purpan, Toulouse.
authors.forename: B
authors.initials: B
authors.lastname: Fournié
authors.forename: R
authors.initials: R
authors.lastname: Viraben
authors.forename: R
authors.initials: R
authors.lastname: Durroux
authors.forename: S
authors.initials: S
authors.lastname: Lassoued
authors.forename: R
authors.initials: R
authors.lastname: Gay
authors.forename: A
authors.initials: A
authors.lastname: Fournié
mesh_terms: D000328:Adult; D015535:Arthritis, Psoriatic / Q000000981:diagnostic imaging / Q000473:pathology*; D006214:Hallux / Q000000981:diagnostic imaging / Q000473:pathology*; D006801:Humans; D008297:Male; D008875:Middle Aged; D009260:Nail Diseases / Q000473:pathology*; D010522:Periostitis / Q000000981:diagnostic imaging / Q000473:pathology*; D011859:Radiography
vernacular_title: L'onycho-pachydermo-périostite psoriasique du gros orteil. Etude anatomo-clinique et approche physiopathogénique à propos de 4 observations.