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Diverticulitis is a topic covered in the 5-Minute Emergency Consult.

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  • Micro- or macroscopic perforation of diverticulum
    • Uncomplicated (75%) vs. complicated
  • Incidence increasing
    • Obesity is a risk factor


  • Fecal material in diverticulum hardens, forming fecalith, increasing intraluminal pressure
  • Erosion of diverticular wall leads to inflammation
  • Focal necrosis leads to perforation
  • Microperforation: Uncomplicated diverticulitis:
    • Colonic wall thickening
    • Inflammatory changes (fat stranding on CT)
  • Macroperforation: Complicated diverticulitis:
    • Abscess
    • Bowel obstruction
    • Fistulas after recurrent attacks
    • Colovesical fistula (most common) presents with dysuria, frequency, urgency, pneumaturia, and fecaluria.
    • Peritonitis

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* When formatting your citation, note that all book, journal, and database titles should be italicized* Article titles in AMA citation format should be in sentence-case
TY - ELEC T1 - Diverticulitis ID - 307608 ED - Barkin,Adam Z, ED - Barkin,Roger M, ED - Hayden,Stephen R, ED - Rosen,Peter, ED - Schaider,Jeffrey J, ED - Shayne,Philip, ED - Wolfe,Richard E, BT - 5-Minute Emergency Consult UR - https://emergency.unboundmedicine.com/emergency/view/5-Minute_Emergency_Consult/307608/all/Diverticulitis PB - Lippincott Williams & Wilkins ET - 5 DB - Emergency Central DP - Unbound Medicine ER -