A Case of Léri's Pleonosteosis

Abstract

André Léri was the first to describe an unusual congenital and hereditary syndrome, to which he applied the term pleonosteosis. The typical syndrome consists of the following features:
(1) broadening and deformity of the thumbs and great toes,
(2) flexion contractures of the I. P. joints,
(3) limitation of motion of single or multiple joints including the spine,
(4) short stature,
(5) Mongoloid facies (inconstant).
This report concerns what is believed to be the first case of Japanese to exhibit this rare entity.