Bicornuate uterus


Bicornuate uterus is due to incomplete or partial fusion of the müllerian ducts and accounts for approximately 10% of Mullerian duct anomaly. It is characterized by the presence of a cleft (>1 cm in depth at MR imaging) in the external contour of the uterine fundus. The duplicated endometrial cavity may be associated with cervix duplication (bicornuate bicollis) or be without cervix duplication (bicornuate unicollis).