3D imaging is the modality of choice used for direct visualization in defining precise anatomic locations and pathologies, as well as becoming indispensable in guiding surgical and percutaneous procedures. The introduction of 3D TVS ultrasound into gynecological evaluation has yielded improvement in the diagnosis of Müllerian malformation of the uterine cavity. With 3D TVS, we are able to visualize the coronal uterine plane, which aids the diagnosis of these malformations.