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

摘要致畸胎是最常见的致生儿儒症为短小的四肢、小胸、巨头及脑部发育异常等。