Thanatophoric dysplasia (TD) is the most common form of lethal neonatal dwarfism with micromelic shortening of the limbs, macrocephaly, platyspondyly, and reduced thoracic cavity.

• 摘要致死性畸胎是最常见的致死性新生儿侏儒症其特点为短小的四肢、小胸、巨头及脑部发育异常等。