Cerebellar hypoplasia is an incomplete development of the cerebellum .

小脑发育不全是指小脑的不完整发育。

Prenatal diagnosis of fetal pulmonary hypoplasia .

胎儿肺发育不良的产前诊断。

Aplasia and hypoplasia of the optic nerve .

视神经不发育和发育不全。

Congenital hypoplasia or aplasia of the pituitary .

先天性垂体发育不全或。

Agenesis and hypoplasia of the lung .

肺不发育和肺发育不全。