Lower GI 2017

The Royal Marsden

MRI as a gold standard – why we need to go beyond TNM Prognostic/predictive item Validation by modality? EUS MRI

T substage rather than T stage

no

yes

Detection of EMVI rather than N stage

no

yes

CRM status – should be a staging item

no

yes

Assessment of low rectal plane

no no

yes yes

Reassessment after CRT

Effective treatment stratification?

no

yes