Septate uterus with cervical duplication: a rare malformation.

This previously unreported case of complete uterine septum, cervical duplication, and a longitudinal vaginal septum is best explained by the theory of Muller et al. (5), not by classically held views of unidirectional müllerian development. According to their theory, this anomaly could develop from failure of fusion of the most caudad müllerian ducts, resulting in a normal uterine fundus, with a complete septum, cervical duplication, and a longitudinal vaginal septum. This anomaly was accurately characterized using an endoscopic approach.