Gastric Perforation: A Rare Presentation of Malignant Gastric Outlet Obstruction.

Mechanical gastric outlet obstruction (GOO) due to malignancy can occur with cancers in the stomach and duodenum. GOO can cause perforation of the stomach or the esophagus. We present a 65-year-old female with newly diagnosed metastatic pancreatic cancer who presented with acute onset abdominal pain. She was taken for emergent exploratory laparotomy where she was found to have gastric perforation and duodenal obstruction from an invasive large pancreatic head mass. This is a rare case report of gastric perforation due to a malignant gastric outlet obstruction secondary to invasive pancreatic cancer.