Double bubble sign

Radiologic sign on prenatal ultrasound or neonatal abdominal radiograph showing two adjacent gas- or fluid-filled structures representing a dilated stomach and proximal duodenum, typically indicating high intestinal obstruction.

Causes

• Congenital duodenal atresia

• Congenital duodenal stenosis

• Annular pancreas

• Midgut volvulus

• Intestinal malrotation with Ladd's bands