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Diagnostic Radiology

          11/09/2011
Elderly male with acute onset of
     abdominal distention.
Sigmoid volvulus
Sigmoid volvulus
Sigmoid volvulus
Sigmoid volvulus
Sigmoid volvulus
Sigmoid volvulus
Dilated Bowel
Small bowel - >2.5 to 3 cm in diameter
Colon - > 5cm in diameter
Cecum - >8cm in diameter
Statistics
                          Bowel Obstruction


Small Bowel Obstruction 80%         Large Bowel Obstruction 20%

Post-surgical adhesions              Colon CA (50-60%)
Incarcerated Hernias                 Diverticulitis
Adhesions                            Volvulus (3-8%)
                                     Fecal Impaction
                                     Amebiasis
                                     Ischemia
                                     Adhesions

                                                    Brant 2006 p 743-745
Sigmoid Volvulus
-most common in the elderly & high residue diet
-twists around its mesentery
-closed loop obstruction
-”Large gas filled without haustral markings
  arising from the pelvis extending into the
  abdomen”
References
• Brant , WE and Helms CA. Fundamentals of
  Diagnostic Radiology. LWW 2006: 743-745.
• Sigmoid volvulus in the Middle East. World J
  Surg. 2008 Mar;32(3):459-64.

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Sigmoid volvulus

  • 1. Diagnostic Radiology 11/09/2011 Elderly male with acute onset of abdominal distention.
  • 8. Dilated Bowel Small bowel - >2.5 to 3 cm in diameter Colon - > 5cm in diameter Cecum - >8cm in diameter
  • 9. Statistics Bowel Obstruction Small Bowel Obstruction 80% Large Bowel Obstruction 20% Post-surgical adhesions Colon CA (50-60%) Incarcerated Hernias Diverticulitis Adhesions Volvulus (3-8%) Fecal Impaction Amebiasis Ischemia Adhesions Brant 2006 p 743-745
  • 10. Sigmoid Volvulus -most common in the elderly & high residue diet -twists around its mesentery -closed loop obstruction -”Large gas filled without haustral markings arising from the pelvis extending into the abdomen”
  • 11. References • Brant , WE and Helms CA. Fundamentals of Diagnostic Radiology. LWW 2006: 743-745. • Sigmoid volvulus in the Middle East. World J Surg. 2008 Mar;32(3):459-64.