The pronator quadratus (PQ) is a muscle that has been virtually forgotten since it was first documented four centuries ago. Little, if any, functional syndromes have been attributed to the PQ since that time nor have any thorough investigations been conducted with respect to it's anatomy. In this case report, ...

Typus Degenerativus Amstelodamensis or Amsterdam dwarfism, a syndrome of unknown etiology characterized by mental retardation, a distinctive face, characteristic hands and feet, defective growth and other minor malformations, was first described by Cornelia de Lange in 1933. Approximately 69 cases, including nine autopsies, have been reported in the literature. In ...

Three cases of de Lange's syndrome are described. This condition is characterized by generally severe mental retardation, reduced stature, mild microcephaly, hypertrichosis, various anomalies of hands and feet, and a peculiar facies. The most outstanding features of the latter are the low forehead, profuse, generally confluent eyebrows, abundant long eyelashes, ...