Autosomal recessive syndrome characterized by hypogenesis or agenesis of CORPUS CALLOSUM. Clinical features include MENTAL RETARDATION; CRANIOFACIAL ABNORMALITIES; digital malformations, and growth retardation.

Synonyms: Hallux Duplication, Postaxial Polydactyly, and Absence of Corpus Callosum, Acrocallosal Syndromes, Acrocallosal Syndrome, Syndromes, Acrocallosal, Syndrome, Acrocallosal