"Abscessed" with Bowel POCUS: Diverticulitis

HPI: 42 yo male with no PMH presenting for abdominal pain x 2 days. His physical exam was significant for LLQ tenderness with guarding and rebound.

POCUS showed (see video):

We initially thought the outpouching connected to the abscess was a diverticulum but on further review, it’s more likely to be a loop of bowel given its size.

What a diverticulum should look like:


CT scan for reference:


Diagnosing Diverticulitis on POCUS

  • Use curvilinear vs linear probe

  • Start at maximal point of pain > lawnmower technique

  • #1: Find diverticula

    • Looks like outpouching attached to loop of bowel

  • Secondary findings:

    • Bowel wall diameter >5 mm

    • Prominent, fluid-filled bowel loops

    • Pericolic fluid collections

    • Increased pericolic fat (hyperechoic fat anterior to diverticula)

    • Intraabdominal abscesses

Case conclusion: CTAP showed perforated diverticulitis with multiple intraabdominal abscess. Patient was taken for IR drainage with feculent/purulent drainage noted. Patient is still doing well on surgical service.

References

  1. https://coreultrasound.com/diverticulitis/

  2. https://www.ultrasoundgel.org/posts/SFPsfN9yJ-9uSp640QlWtg

  3. https://www.ultrasoundcases.info/diverticulosis---diverticulitis-531/