iniencephaly

Iniencephaly is a rare and severe birth defect characterized by the backward tilting of the head, often with an absent neck, and severe spinal defects. It is a type of neural tube defect that occurs early in fetal development. Infants with iniencephaly are frequently born with other malformations, such as anencephaly or cyclopia. This condition is more common in females and typically results in the infant surviving only a few hours after birth. The exact cause is unknown, but it is associated with abnormalities in the development of the central nervous system.1