Figure 24a.

(a) Axial plane through the female pelvis shows key features important for resection. Involvement of the internal iliac vessels or pelvic organs is not a contraindication to resection. Involvement of the external iliac vessels, bones, or proximal nerves (lumbosacral plexus and sciatic nerve) is a relative contraindication to resection. (b) Axial T2-weighted image shows a recurrence of endometrial cancer with muscular abutment but no invasion (black arrow) and anterior abutment of the external iliac vessels without encasement (white arrow). (c) Contrast-enhanced T1-weighted image shows a recurrence of cervical cancer with encasement of the external iliac vessels (arrow).