Cause of chronic tropical pancreatitis is ?

.Chronic pancreatitis is more common in males, common in Kerala (induced by diet, rich in Tapioca). Aetiology * Alcohol - 80% * Stones in biliary tree - rare cause * Malnutrition, diet * Hyperparathyroidism * Hereditary (familial hereditary pancreatitis) * Idiopathic - 20% - as mutation * Trauma * Congenital anomaly (Pancreatic divisum) * Cystic fibrosis * Autoimmune pancreatitis * Hyperlipidaemia ref:SRB&;S manual of surgery,ed 3,pg no 624