A syndrome of multiple abnormalities characterized by the absence or hypoplasia of the PATELLA and congenital nail dystrophy. It is a genetically determined autosomal dominant trait.

The flat, triangular bone situated at the anterior part of the KNEE.

The thin, horny plates that cover the dorsal surfaces of the distal phalanges of the fingers and toes of primates.

Diseases of the nail plate and tissues surrounding it. The concept is limited to primates.