Solitary thick intra-uterine membranes not associated with the amniotic band syndrome; three case reports.

Three cases in which a single intra-uterine membrane with a free and thickened edge was identified by ultrasound antenatally are presented. The bands turned out to be thickenings of the fetal membranes. In one case intra-uterine adhesions were documented by hysterosalpingography (HSG) and hysteroscopy before conception. One infant suffered from hypospadias. The diagnosis of intra-uterine bands or membranes should turn our attention to a possible intra-uterine pathology.