We present a case in which a 55-year-old male with a past medical history of systemic lupus erythematosus (SLE) and rheumatoid arthritis (RA) presented with sharp, worsening right-sided abdominal pain radiating across the entire abdomen after eating peanuts. Computed tomography (CT) imaging showed evidence of acute sigmoid diverticulitis complicated by a walled-off perforation. The patient's past medical history suggested previous recurrent episodes of diverticulitis. Our patient underwent exploratory laparotomy, sigmoid colon resection with low anterior anastomosis and proctocolectomy, and loop ileostomy. During treatment, the sigmoid colon was found to be very indurated and abnormally going all the way down to the peritoneal reflection. Appropriate identification of the patient's condition and timely intervention resulted in a successful outcome.
Keywords: complicated diverticulitis; diverticular disease; exploratory laparotomy; sigmoid diverticulitis; sigmoid resection.
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