患儿,男,1.7岁。第1胎、足月产,第一产程长。发育迟缓、智力低下,哭声似猫叫,声音微弱。患儿抵抗力差,易“感冒”、发热,曾患一次肺炎,经常夜间哭闹,全身软,坐立不稳,尚不会走路,只会叫“爸、妈”单音节词。查体:发育差、神志清楚,身高82cm,体重9kg;小头满月脸,前额狭小,眼间距2.5cm,外毗下斜,两眼常凝视,阔鼻梁、耳位低;肌张力减低,左手通贯掌;心脏无杂音,肺无异常;轻度脐疝,两侧睾丸已 Children, male, 1.7 years old. The first child, full-term production, the first production long. Stunted, mental retardation, crying feline, weak voice. Children with poor resistance, easy to “cold”, fever, had a pneumonia, often crying at night, the whole body is soft, unstable, not walking, will only be called “father, mother” monosyllabic words. Physical examination: poor development, conscious, height 82cm, weight 9kg; small head full moon face, narrow forehead, eye spacing 2.5cm, outside the next oblique, two eyes often stare, wide nose bridge, ear low; Through the palm; heart no noise, no abnormal lung; mild umbilical hernia, testes on both sides