A locally advanced pancreatic body cancer presenting common bile duct invasion resected via distal pancreatectomy after gemcitabine plus nab-paclitaxel chemotherapy: A case report

•A locally advanced pancreatic cancer has been curable by chemotherapy and surgery.•The arterial invasion by imaging diagnostics is sometimes released by chemotherapy.•The common bile duct invasion was dissolved after chemotherapy.•The effect of chemotherapy would help surgeons do a function-preserving operation.