• Medicine · Oct 2024

    Case Reports

    Contrast-enhanced computed tomography assisted diagnosis of bleeding caused by colonic angiodysplasia: A case report.

    • Yinze Chen, Xiaomin Liu, Liang Guo, Ying Tang, and Xiangwei Meng.
    • Department of Gastroenterology, The First Hospital of Jilin University, Changchun, China.
    • Medicine (Baltimore). 2024 Oct 4; 103 (40): e39984e39984.

    RationaleAngiodysplasia (AD) in the gastrointestinal tract is a degenerative vascular condition characterized by vascular dilation, tortuosity, and arteriovenous connections within the mucosal and submucosal layers. AD is a significant cause of lower gastrointestinal bleeding in the elderly, often presenting as chronic, intermittent hemorrhage. The research challenge lies in the potential for multiple and minute AD lesions to be missed during endoscopy, which may lead to post-hemostatic rebleeding.Patient ConcernsAn 82-year-old female with a history of coronary artery disease treated with aspirin, presenting with recurrent melena and anemia. The patient exhibited a suboptimal response to blood transfusions and octreotide therapy.DiagnosisAfter excluding tumorous bleeding in the initial contrast-enhanced computed tomography (CECT), we suspect vascular bleeding as the most probable etiology.InterventionsThe initial colonoscopy was unsuccessful due to the occurrence of ventricular tachycardia. Considering the patient's advanced age, cardiac dysfunction, and frailty, a repeat CECT were conducted during episodes of suspected active bleeding. Vascular dilatation within the colonic hepatic flexure wall was visualized during the venous phase, accompanied by contrast agent extravasation into the intestinal lumen. The subsequent urgent colonoscopy and pathological specimens from surgical resection supported the diagnosis of colonic AD.OutcomesAfter the surgery, the patient did not experience melena thereafter.LessonsWe highlight that CECT for diagnosing AD-related bleeding offers higher safety and convenience, potentially superior to digital subtraction angiography, particularly in critically ill elderly patients.Copyright © 2024 the Author(s). Published by Wolters Kluwer Health, Inc.

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