Table 3.

Key points to be identified at imaging for determining local resectability and treatment planning of rectal cancer

Local factors	Location of tumour
	Size and length of tumour
	T stage
Key features affecting local recurrence/ surgical planes	Distance to mesorectal fascia
	Involvement of peritoneum
	Involvement of anal sphincter complex
Nodal involvement	Mesorectal nodes
	Regional (inferior mesenteric artery and internal iliac chains)
Other findings	Extramural venous invasion