Table 2.

Criteria for defining resectability status²⁵,²⁶

	Resectable	Borderline resectable	Unresectable
Venous	Patent SMV and portal vein	Severe SMV impingement or reconstructable SMV occlusion	Unreconstructable SMV/portal occlusion Greater than 180° SMA encasement
Arterial	Clear fat plane around celiac A and SMA	Less than 180° abutment of SMA, reconstructable encasement of SMA Reconstructable abutment or encasement of hepatic artery	Greater than 180° SMA encasement Unreconstructable SMA involvement Any celiac abutment (head mass) Greater than 180° SMA encasement (body mass)
Aorta			Aortic invasion or encasement
Mets	No distant metastases		Distant metastases Metastases to LN beyond field of resection