A rare cause of gastrointestinal obstruction. Drug poisoning as a surgical disorder?

A patient had intestinal obstruction due to a rare cause. The patient presented unusual signs and symptoms. Although we performed a thorough diagnostic workup (CT, ultrasound, radiography, endoscopy), only laparotomy revealed that a bezoar caused the intestinal obstruction. The bezoar consisted of a herbal preparation, which was mentioned by the patient twice as a possible cause of his symptoms. All in all, the patient was right.