1640 / 1851
Conventional high risk features for local recurrence
Rectal tumour extends
within 1mm
or beyond
mesorectal fascia (CRM)
cT3 tumours at level of levators / involving levators
especially
anterior
tumours
Tumour >5mm beyond muscul propria (T3c)
T4b tumours
Extramural vascular invasion (EMVI)
cN2 cancers ?? Unless extracapsular