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The Royal Marsden
MRI detected
Lymph Nodes
close to the mesorectal fascia are
not associated with pCRM involvement (Shihab et al, BJS 2010)
•
Involvement of CRM by lymph node
metastases alone is uncommon (1.3% of all
patients in MERCURY series).
•
Caution when recommending neoadjuvant
therapy based solely on an MRI-detected
lymph node close to the mesorectal fascia.