Acrania, is characterized by partial or complete absence of the calvarium with abnormal brain tissue development. The amniotic band syndrome is a collection of fetal malformations associated with fibrous bands that appear to entrap or entangle various fetal parts in utero and can affect any organ or system and cause a single or multiple anomalies. In the case reported here, the amniotic membrane was well fused to the scalp, and skull bones were abscent above the site of the attachment. Prenatal diagnosis of acrania with the visualization of the amniotic band attached to it is an extremely rare event.
We experienced one case of acrania with amniotic band diagnosed by Prenatal Ultrasonography, and report this with brief review of the literatures.