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Portal venous gas
Portal venous gas Air in stomach wall
Air in gut wall
• CXR shows air in liver – Also ETT a bit low – Gastric distension w NGT in correct position • Portal venous gas = v.bad prognostic sign – Need to differentiate from pneumobilia • Portal venous gas has peripheral gas distribution • Pneumobilia has central gas distribution, usually from intrumentation of biliary tree • Pneumatosis intestinalis = air in gut wall – Highly suggestive of necrotising entercolitis or gut infarction

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Case 1 answer

  • 2.
  • 3. Portal venous gas Air in stomach wall
  • 4.
  • 5. Air in gut wall
  • 6.
  • 7. • CXR shows air in liver – Also ETT a bit low – Gastric distension w NGT in correct position • Portal venous gas = v.bad prognostic sign – Need to differentiate from pneumobilia • Portal venous gas has peripheral gas distribution • Pneumobilia has central gas distribution, usually from intrumentation of biliary tree • Pneumatosis intestinalis = air in gut wall – Highly suggestive of necrotising entercolitis or gut infarction