Enterolith ileus complicating afferent loop syndrome simulating acute pancreatitis.

Afferent loop syndrome after Billroth II gastrectomy is usually caused by those events that impair the evacuation of the afferent duodenal loop. The formation of an enterolith in an afferent loop is a rare but dangerous event. We present a unique report of a patient in whom a huge enterolith developed in the afferent loop of a Billroth II anastomosis, which led to intestinal occlusion. This migration occurred after a laparoscopic procedure, so we hypothesized that this procedure could be the cause of enterolith migration.