Figure 23a. Cervical agenesis diagnosed with an endovaginal MR coil. (a) Coronal T1-weighted image (420/6) obtained with the body coil shows double uteri (R and L) ; the left one is functioning and blood-filled. The cervix could not clearly identified (?). (b) Coronal T1 weighted image after insertion of endovaginal MR coil (C) documents cervical agenesis. The cervix is replaced by a transverse band of low signal intensity (fibrous) connecting the double uteri (arrow) (class 4).