猫叫综合征又称５ｐ－综合征，因在婴儿期和幼儿期哭声如猫叫而得名。群体发病率为１／４５０００，女性占７０％。此病严重智力低下和生长发育障碍，具小头、圆脸、小下颌等特殊面容，外周血染色体培养常规即可检出。本室检出了３例５ｐ－患儿，２女１男。染色体核型证实，有２例患儿为５ｐ１３缺失，１例患儿为５ｐ１５缺失，但都具有特定的面容，说明５号染色体短臂上微小的缺失，均会造成此综合征遗传表型。 Cat called syndrome, also known as 5p-syndrome, because of crying in infancy and early childhood, such as cat named. The incidence of the group is 1/45000, women 70%. The disease is serious mental retardation and growth and development disorders, with a small head, round face, small jaw and other special face, peripheral blood chromosomes can be routinely detected. This room detected 3 cases of 5p-children, 2 female 1 male. Chromosomal karyotype confirmed that 2 cases of children with 5p13 deletion, 1 case of children with 5p15 deletion, but all have a specific face, indicating minor defects on chromosome 5 short arm, will cause the syndrome phenotype.