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  • Title: Massive gastrointestinal bleeding caused by a Dieulafoy's lesion in a duodenal diverticulum: A case report.
    Author: He ZW, Zhong L, Xu H, Shi H, Wang YM, Liu XC.
    Journal: World J Clin Cases; 2020 Oct 26; 8(20):5013-5018. PubMed ID: 33195675.
    Abstract:
    BACKGROUND: Dieulafoy's lesion is a rare vascular abnormality characterized by a small abnormally dilated artery that runs a tortuous course in the submucosa. There is usually no ulcer present in Dieulafoy's lesions and the overlying mucosa is most often normal. Bleeding caused by a Dieulafoy's lesion is usually urgent, massive, life-threatening and prone to recurrence. Dieulafoy's lesions have been reported throughout the digestive tract although the majority of them have been found in the upper digestive tract especially the stomach and duodenum. However, a Dieulafoy's lesion occurring inside a duodenal diverticulum is very rare. CASE SUMMARY: A 74-year-old Asian male with epigastric pain, hematemesis and melena was admitted to our clinic. Before admission, the patient had vomited 500 mL of dark red blood, and passed 200 g of black tarry stool. Conservative management was first undertaken as the patient had not been fasting. However, hemorrhage recurred and the patient went into shock. Urgent endoscopy was performed and a diverticulum of 1.8 cm × 1.2 cm × 0.8 cm was found on the anterior wall of the descending duodenum. The diverticulum was covered with a blood clot. After the clot was removed, an artery stump was observed in the diverticulum with a diameter of 2-3 mm. Two titanium hemostatic clips were inserted to clamp the vessel stump. The patient was discharged 7 d post-endoscopy and followed for 6 mo with no recurrence. CONCLUSION: This case was diagnosed with a Dieulafoy's lesion inside a duodenal diverticulum which has rarely been reported. Hematemesis was stopped by clamping the vessel stump with titanium clips. No complications occurred.
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