Hyperattenuating ring sign (epiploic appendagitis)
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- updated 11 Feb 2023:
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The hyperattenuating ring sign is a sign that has been described with epiploic appendagitis and intraperitoneal focal fat infarction. It refers to a hyperattenuating ring of visceral peritoneum surrounding an inflamed epiploic appendage 1On CT it can be seen asIn the setting of epiplogic appendagitis, the ring would surround a ring of soft tissue surroundingthrombosed vascular pedicle with a region of fat attenuation adjacent to the colon.resultant associated central hyperdense spot sign.
-<p>The <strong>hyperattenuating ring sign</strong> is a sign that has been described with <a href="/articles/epiploic-appendagitis">epiploic appendagitis</a> and refers to a hyperattenuating ring of visceral peritoneum surrounding an inflamed epiploic appendage <sup>1</sup>. On CT it can be seen as a ring of soft tissue surrounding a region of fat attenuation adjacent to the colon.</p>- +<p>The <strong>hyperattenuating ring sign</strong> is a sign that has been described with <a href="/articles/epiploic-appendagitis">epiploic appendagitis</a> and <a href="/articles/perigastric-appendagitis" title="Intraperitoneal focal fat infarction (IFFI)">intraperitoneal focal fat infarction. It </a>refers to a hyperattenuating ring of visceral peritoneum. In the setting of epiplogic appendagitis, the ring would surround a thrombosed vascular pedicle with a resultant associated central hyperdense spot sign. </p>
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