Bicervical uterus and septate vagina: report of a previously undescribed Müllerian anomaly.

A case of non-septate uterus with double cervix and complete longitudinally septate vagina is described. This previously undescribed Müllerian anomaly has been detected by complete clinical and instrumental investigations (transvaginal ultrasonography, urography, hysterosalpingography, hysteroscopy and laparoscopy). Aetiological hypotheses are discussed and we suggest adding the uterovaginal malformation described in this report to the embryological classification recently proposed by Acien et al. (1991, 1992) which postulates isolated Müllerian anomalies as a consequence of a minor mesonephric defect.