In carcinoma head of pancreas nausea and vomiting is due to
External compression of duodenum
Poal vein infiltration
Proliferation and infiltration into duodenum
Chemotherapy related
PRESENTING SYMPTOM FREQUENCY Jaundice Weight loss Abdominal pain Nausea/vomiting Pruritus Fever Gastrointestinal bleeding Ref: Sabiston 20th edition Pgno: 1544
G.I.T