Mesorectal nodes
§
Relationship to CRM
not
so important
§
Positive nodes within 1mm
of CRM not strong
predictor of local
recurrence
(vs. direct
tumour spread)
§
Main risk is 4 or more +ve
nodes (N2)
§
N1 (1-3 +ve)
Shihab et al Br J Surg 2010
<1mm