Target Volume Determination 2015

CTVC: inguinal nodal region Cranial:

caudad edge of internal obturator vessels (bony landmark: upper edge of the superior rami pubic) Caudal: 2 cm below the saphenous-femural junction Margin around the vessels: The inguinal femural region should be contoured as a compartment with any identified nodes (expecially in the lateral inguinal region) included

Myerson RJ, Garofalo MC, El Naqa I, et al. Int J Radiat Oncol Biol Phys. 2009