Two Cases of Cri Du Chat(5p-) Syndrome

We have experienced two cases of the Cri Du Chat Syndrome. The first case, 1 and 11/12 year old female, was admitted to evaluated profound mental retardation and failure to thrive. The other, 3 month old female, visit this dept for cat-like cry. They had the typical clinical characteristics of the Cri Du Chat Syndrome and showed showed the classical chromosome abnormality (46, XX 5p-), revealed by cytogenetic study.