How is presentation of gastrinoma?

Clinical Presentation PU 90% , Diarrhea 50% , GERD 50% Sporadic case 75% MEN-1 related 25% (most common PNETs in MEN-1) Disease of 50% 50% Malignancy (may up to 90%) 50% Metastasis 50% Multiple Location 70-90% in Passaro triangle) , mostly at duodenum wall