Question 201

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A 65-year-old woman comes to the emergency department with progressively worsening constipation and abdominal pain over the past 3 months. She had a few mild attacks of diverticulitis. Her last colonoscopy was 2 years ago after her first episode of diverticulitis, and there were no concerns for malignancy. She is afebrile with normal vital signs; her last bowel movement was 3 days ago, and she has mostly left-sided abdominal pain. Computed tomography (CT) shows no free air or active inflammation but a significantly narrowed 8 cm length of sigmoid colon with upstream dilation of the colon, suggestive of a diverticular stricture (see figures).

The best treatment option is

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