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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:
Ventral : bladder
Dorsal : perirectal/ mesorectal
fascia
Medial : cervical rim/tumor
Lateral : pelvic wall