GI Radiology > Small Bowel > Disease Patterns > Small Bowel Obstruction

Disease Patterns

Diffuse

Causes of Mechanical Obstruction

  •           Extrinsic lesions (90%)
  •           Adhesions (previous surgery, peritonitis)
  •           Hernias (external, internal)
  •           Volvulus
  •          Intraluminal lesions
  •           Intussusception
  •           Foreign body, gallstone, bezoar
  •           Meconium ileus
  •           Wall lesions
  •           Strictures (neoplastic, inflammatory, ischemic, amyloid, XRT induced)
  •           Masses (neoplasm, hematoma)
  •           Congenital atresia or stenosis