Acrania from amniotic bands Alberto Sosa OlavarrÃa, MD, PhD Article Published: May 30, 2002 Acrania from amniotic bands Alberto Sosa OlavarrÃa, MD, PhD Perinatology Unit, Carabobo University, Valencia – Venezuela This is a second trimester fetus with acrania from amniotic bands. Note the band attachment on the base of the skull: Discussion Board Start a discussion about this article Add bookmark Bookmarked