Small bowel obstruction secondary to a liberated Meckel's enterolith.

A 30-year-old woman presented with a short history of abdominal pain which rapidly progressed to absolute constipation. An abdominal radiograph demonstrated a paucity of bowel gas and a 4 cm lesion with concentric laminar calcification projected over the pelvis. A CT scan revealed a 4 cm giant Meckel's diverticulum, downstream of which a laminated mass was impacted in the lumen of the distal ileum causing small bowel obstruction. Subsequent surgery confirmed small bowel obstruction secondary to impaction of a liberated enterolith from the giant Meckel's diverticulum. The history, imaging appearances and surgical findings in this case are classical of this unusual but treatable condition.