It's not as hard as you might think, but only 5% of the people managed to
get the right answer.
A 43-year-old man is evaluated for a one-year history of chronic abdominal
pain. He describes episodes of epigastric and left upper quadrant pain that
last for hours and are not relieved by antacids. Certain foods can
precipitate the pain. He also complains of occasional diarrhea. The patient has lost
10 pounds over the last 6 months. Four years ago he was hospitalized for
three clays with acute abdom
