Prolonged Epigastric Pain Caused by a Leaf Stem Embedded in the Gastric Wall.

A 67-year-old woman underwent esophagogastroduodenoscopy to determine the cause of her prolonged epigastric pain. During the examination, a sharp-pointed foreign body was observed; the edge of the object had been embedded in the gastric wall. The object was removed via an endoscope, and the patients' symptoms improved immediately. Based on a dietary history and an electron microscope examination, we identified the object as a stem of mizuna, a potherb mustard. Our report indicates that commonly eaten leafy green vegetables can act as sharp-pointed foreign bodies with the potential to injure the upper gastrointestinal tract.