Prolapsed polyps of the stomach should be included in the differential diagnosis of secondary pancreatitis.

Polyps of the stomach are rare lesions with an incidence between 1.7% and 3.9%.

These observations suggest a greater role for stromal Bmp signaling in gastric polyposis initiation.

These results support the novel concept that loss of mesenchymal Bmp signaling cascade acts as a trigger in gastric polyposis initiation.

We update and review a large pedigree originally described by Santos and Magalhães with familial gastric polyposis and a high incidence of gastric cancer.