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Recommendations
PS abdominal nodes:
This a new sub-volume. It should only be
included when it harbors
positive nodes
CTV cranial border
:
In case of
cT3, cN0 , MRF
-, the upper border
of the LLN can be
lowered to the cranial
border of the M
, corresponding with the
bifurcation of the superior rectal artery
LLN modulation(posterior and anterior)
include the
anterior LLN in case of cT4,
cN2
, positive node in the posterior LLN
Ischio-rectal fossa:
include when
infiltrated
(no nodes, sphincter
is a barrier)
when
external anal sphincter infiltration
(blood supply from inferior rectal artery)