Fig. 2
From: Endometriosis: clinical features, MR imaging findings and pathologic correlation
Ureter visualization with intravenous gadolinium and variability of the ureteral course in two different patients with bilateral endometriomas. 27-year-old woman (a, b). (a) Axial contrast-enhanced fat-suppressed T1-weighted image (acquired about 10 min after contrast administration) and (b) corresponding coronal MIP image. The right ureter (white arrows) courses along the lateral margin of the right endometrial cyst (white arrowhead) and the uterus (white *), the left ureter (white arrows) courses along the posterior margin of the left endometrioma (white arrowheads). 35-year-old woman (b, c). (c) Axial contrast-enhanced fat-suppressed T1-weighted image (acquired about 10 min after contrast administration) and (d) corresponding coronal MIP image. The right ureter (white arrows) courses medially to the omolateral endometrial cyst (white arrowheads), the left ureter (white arrows) courses laterally to the omolateral endometrioma (white arrowheads). Preoperative knowledge of ureteral course is important in order to prevent iatrogenic injuries to the ureters