Borders:
Anterior – urinary bladder
Posterior – perirectal fascia
Medial – tumor/cervical rim
Lateral – Pelvic wall
Dimopoulous et al IJROBP 64(5):1380-1388, 2006
Anatomical considerations
Parametrial
Limits:
Uterus
Ventral : bladder
Dorsal : perirectal fascia
Medial : cervical rim/tumor
Lateral : pelvic wall