Alternative titles and symbols : Cat cry syndrome; Chromosome 5p deletion syndrome;
Description : Cri-du-chat syndrome was first described by Lejeune et al. (1963) as a hereditary
congenital syndrome associated with deletion of part of the short arm of chromosome
5. The deletions can vary in size from extremely small and involving only band 5p15.2
to the entire short arm. Although the majority of deletions arise as new mutations,
approximately 12% result from unbalanced segregation of translocations or recombination
involving a pericentric inversion in one of the parents.;
Inheritance : Autosomal dominant;
Molecular basis : Contiguous gene syndrome caused by deletion of 560 kb to 40 Mb on chromosome 5p15.2;