We admitted the patient to our service from the emergency room to treat her for thrombocytopenia (an abnormally low platelet count) and spontaneous bruising. The patient, in her fifties, was otherwise healthy. True, she had been treated for stomach cancer nearly seven years ago, but it was in remission and had been for a while. She had no issues eating or drinking, no problems going to the bathroom, no blood in her stool, no vomiting, no bloating, no severe acid reflux. In other words, she ha...