On the syndrome caused by a deletion of the short arm of a 4-5 chromosome

Abstract

SUMMARYDuring routine karyotypic analysis of patients with mental deficiency and congenital malformations, a partial deletion of the short arm of a B (4-5) chromosome was observed in two children (a male, 23 months old, and a female, 4 months old).Clinical pictures and chromosomal abnormalities were found to be consistent with the findings in the « cri du chat » syndrome.