Case: Radiologists
A 55-year-old male patient presents with acute abdominal pain and a history of diverticulitis. The emergency department orders a CT scan of the abdomen and pelvis to rule out complications such as abscess or perforation. The radiologist must use the PACS system to retrieve previous imaging studies and compare them with the current scan to provide an accurate diagnosis.
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The CT scan shows thickening of the sigmoid colon with surrounding fat stranding and a small pericolic abscess. No evidence of free air is present, suggesting no perforation.
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What is the most likely diagnosis based on the CT findings?