236PREDICTING ADJUVANT CHEMOTHERAPY BENEFIT: LYMPHOVASCULAR INVASION AS A SURROGATE CRITERION IN RESECTED CHOLANGIOCARCINOMA PATIENTSThis study aimed to identify surrogate criteria for selecting patients with resected intrahepatic or hilar cholangiocarcinoma (CC) who may benefit from adjuvant chemotherapy, especially in cases where nodal assessment is inadequate. A total of 138 patients undergoing resection were analyzed, revealing lymphovascular invasion (LVI) as a significant negative prognostic factor for overall survival (OS). These findings suggest that LVI presence could serve as a potential criterion for adjuvant chemotherapy selection in CC patients after surgical resectionVenkata@gmail.comResearch922019 Intrahepatic cholangiocarcinoma, Hilar cholangiocarcinoma, Adjuvant chemotherapy, Lymphovascular invasion, Overall survivalDr Anurag Chitranshi,Dr Murali Krishna Reddy CT,Dr T Venkata Ravi KumarAssociate Professor, Department of General Surgery, Viswabarathi Medical College & General Hospital, RT Nagar, Penchikalapadu, Kurnool, India,Associate Professor, Department of General Surgery, Viswabarathi Medical College & General Hospital, RT Nagar, Penchikalapadu, Kurnool, India,Associate Professor, Department of General Surgery, Viswabarathi Medical College & General Hospital, RT Nagar, Penchikalapadu, Kurnool, India