Dieulafoy lesion
Updates to Article Attributes
A Dieulafoy lesion is an uncommon but important cause of acute gastrointestinal bleeding. It is characterised by a dilated tortuous submucosal artery that erodes overlying gastrointestinal mucosa.
Epidemiology
- contributes to ~1.5% of all acute gastrointestinal bleeding1
- men: women 2:1
- can occur at any age but presents more commonly in older patients
Pathology
Dieulafoy lesions are dilated and tortuous submucosal arteries that erode the overlying gastrointestinal (GI) mucosamucosa and protrude causing GIresult in bleeding 2. They Although they can be present throughout the GIgastrointestinal tract but, approximately 70% are most commonly foundlocated in the stomach (~70%).
Radiographic features
CTACT
CT angiogram may show:
- enlarged submucosal vessel with or without active contrast extravasation
into the GI lumen - vessels can appear linear or serpentine, or as a nonspecific blush of mucosal/submucosal contrast 3
Treatment and prognosis
Endoscopic treatment is the treatment of choice and has reported success rate over 90% 4. Angiography plus embolisation or surgery can be considered in refractory cases.
History and etymology
It was first described by M T Gallard a French surgeon in 1884 but was described in more detaisl by Paul Georges Dieulafoy, another French surgeon in 1898 5.
-</ul><h4>Pathology</h4><p>Dieulafoy lesions are dilated and tortuous submucosal arteries that erode the overlying gastrointestinal (GI) mucosa and protrude causing GI bleeding <sup>2</sup>. They can be present throughout the GI tract but are most commonly found in the stomach (~70%). </p><h4>Radiographic features</h4><h6>CTA</h6><ul>-<li>enlarged submucosal vessel with or without active contrast extravasation into the GI lumen</li>- +</ul><h4>Pathology</h4><p>Dieulafoy lesions are dilated and tortuous submucosal arteries that erode the overlying gastrointestinal mucosa and result in bleeding <sup>2</sup>. Although they can be present throughout the gastrointestinal tract, approximately 70% are located in the stomach. </p><h4>Radiographic features</h4><h6>CT</h6><p>CT angiogram may show:</p><ul>
- +<li>enlarged submucosal vessel with or without active contrast extravasation</li>
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