18q-综合征即18号梁色体部分单体综合征。第1例由Grouchy等于1964年报告。我室在检查智力低下儿的染色体中发现1例,现报告如下。患者,男,4岁,出生体重3200g,第1胎,足月顺产。生后无窒息史。出生时其父28岁,母27岁。其母妊娠1个多月时曾患感冒,服过土霉素、扑热息痛等药物,且有轻度煤气中毒史。父母非近亲结婚,家族中除 18q-18 is the body part of the body color beam syndrome. The first case was reported by Grouchy in 1964. My room in examining the mental retardation of children found in 1 case of chromosomes, are as follows. Patients, male, 4 years old, birth weight 3200g, the first child, full-term birth. No history of asphyxia after birth. His father was 28 years old when he was born, and his mother was 27 years old. The mother had more than 1 month of pregnancy when suffering from a cold, serving oxytetracycline, paracetamol and other drugs, and mild gas poisoning history. Parents are married to non-relatives, except in the family