VIPoma

Rare Vasoactive intestinal peptide(VIP) producing pancreatic tumor.

Patients develop VIPoma syndrome ( pancreatic cholera )

Characterized by 

Watery diarrhea 

Muscle weakness and cramps( hypokalemia)

Decreased gastric acid secretion 

Flushing 

Diagnosis: 

VIP levels > 75 pg/ml 

Abdominal CT