Imaging provided a definitive diagnosis for a 58-year-old woman who presented to the emergency department with abdominal pain. The previous day, she had nonbloody diarrhea followed by sharp epigastric pain that migrated to her right lower quadrant and flank. The pain improved while she was lying flat and worsened with upright posture. Additionally, she had distinct, persistent pressure over the epigastrium and multiple episodes of nonbloody emesis that developed after the diarrhea.