Figure 18. Posterolateral displacement of the ureter by a large myomatous uterus. CT scan shows a large leiomyomatous uterus (Ut) displacing the effaced left ureter (U) posterolaterally against the psoas muscle. The left ovary (Ov), which contains a simple cyst, is uplifted into the anterior upper pelvis away from the ureter. The ureter would be similarly displaced posterolaterally by a large adnexal, bladder, or even bowel mass.