An otherwise healthy 6 year-old female presented with lower abdominal pain and non-bloody, non-bilious emesis since 11:00 PM the previous night. Several hours prior to the onset of her symptoms, she was playfully thrown into a pond where she was swimming. She subsequently had take-out brown rice and vegetables with her family. Nobody else developed symptoms. Her pain was worse with ambulation and bumps in the road. She has had no diarrhea, constipation, fevers, urinary symptoms, or other acute complaints. She had similar but less severe episodes of these symptoms in the past. The patient’s father had a history of a “blood disorder” requiring abdominal surgery…

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