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

摘要性畸胎是最常见性新生儿儒症其特小四肢、小胸、巨头及脑部发育异常等。