congenital malformations的用法和樣例：
例句
- Intrauterine infections with varicella-zoster virus following maternal varicella in early pregnancy and resulting in congenital malformations are rare.
摘要懷孕初期母親感染水痘帶狀皰疹病毒造成的胎內感染可導致罕見的先天畸形。 - It is suggested that lumbosacral agenesis, a severe congenital defect, might be one of the anomalies of diabetic embryopathy.
此病例顯示腰薦椎發育不全可能是母親糖尿病所導致胚胎病變的一種，且無論有無接受胰島素治療，此先天畸形仍可能形成。
