Psoriatic-onycho-pachydermo-periostitis is a particular form of psoria
tic arthropathy recently described, which combine psoriatic onychosis,
thickening of the distal soft tissues and osteo-periostitis of the di
stal phalanx without lesion of the interphalangeal joint. Biological e
xaminations are normal. Radiological lesions show a phalanx condensati
on which gives a spicule aspect. Two cases of onycho-pachydermo-perios
titis are described. We report the first one with all the fingers and
toes concerned.