Surgery In Carcinoma head of pancreas, Nausea & vomiting is due to: A External Compression of duodenum B Portal vein infiltration C Proliferation infiltration of tumor into duodenum D Chemotherapy related 💡 Explanation In Carcinoma head of pancreas, Nausea & vomiting is due to: ✓ Correct Answer: A. External Compression of duodenum