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Surgical Management of Giant Colonic Diverticulum Presenting After Laparoscopic Lavage for Diverticular Perforation and Sepsis

Jonathan R. Chino, Constanze S. Rayhrer, Brad D. Barrows, Michael M. Salehpour

(Department of General Surgery, Community Memorial Health System, Ventura, CA, USA)

Am J Case Rep 2020; 21:e923457

DOI: 10.12659/AJCR.923457

BACKGROUND: Diverticulosis and its complication of diverticulitis is a common condition that can be found in up to 35% of the population. Giant colonic diverticulum is a rare entity with fewer than 200 cases reported in the scientific literature. Development of a giant diverticulum as a sequelae of laparoscopic washout is an unreported event in current literature.
CASE REPORT: The patient was a 74-year-old female who had a well-known history of diverticulosis and diverticulitis. She developed perforated sigmoid diverticulitis, underwent laparoscopic washout and recovered without colon resection. Within a year after washout, she developed abdominal distention and bloating, and computed tomography (CT) imaging revealed a giant diverticulum. She went on to undergo surgery for resection of her sigmoid colon, which contained the giant diverticulum. Her recovery was otherwise uneventful.
CONCLUSIONS: To our knowledge, this is the first case report of giant diverticulum presenting as a complication of abdominal washout for management of acute diverticulitis. Initial CT scan performed at the time of perforation did not demonstrate this diverticulum, indicating that it developed within the year after abdominal washout for sepsis and acute rupture, likely due to weakening of the colonic wall secondary to ongoing inflammation. The very rare presentation of giant diverticulum makes it difficult to establish a clear link to washout, however, this case establishes a groundwork for further investigation as our fund of knowledge on the subject continues to grow.

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