376 / 1332
Nodal CTV
(CTV-E, no macroscopic nodal involvement)
•
Paraaortic
•
Common iliac
•
External iliac
•
Internal iliac
•
Obturator
•
Presacral
•
Inguinal (in stage IIIa)
Lymph nodes are located around vessels
Nodal CTV contouring = Delineation of vessels with margins
Which margin/s are necessary ?