Table 1.

Terminology related to the degree of the surgical resection

Level of resection	Resectability
Complete gross resection (CR)	Macroscopic total removal of all visible tumour and nearby abnormal lymph nodes
Near-complete gross resection	Resection of tumour leaving a minimal macroscopic residue
Gross total resection (GTR)	Removal of >95 % of the visible tumour
Incomplete resection
Subtotal resection (STR)	Removal of >50 % but <95 % of the visible tumour
Less than STR	Removal of <50 % of the visible tumour