• Internal medicine · Feb 2023

    Review Case Reports

    Obscure Gastrointestinal Bleeding Caused by a Small Intestinal Lymphatic-venous Malformation: A Case Report with a Literature Review.

    • Yasuhiko Hamada, Yuhei Umeda, Yohei Ikenoyama, Akina Shigefuku, Hiroki Yukimoto, Misaki Nakamura, Masaki Katsurahara, Kyosuke Tanaka, Noriyuki Horiki, Yuka Sugimoto, and Hayato Nakagawa.
    • Department of Gastroenterology and Hepatology, Mie University Hospital, Japan.
    • Intern. Med. 2023 Feb 1; 62 (3): 387391387-391.

    AbstractA 44-year-old woman presented with severe anemia. We strongly suspected gastrointestinal bleeding; however, esophagogastroduodenoscopy, colonoscopy, and computed tomography showed no bleeding sources. Video capsule endoscopy revealed an actively bleeding submucosal lesion within the jejunum. Double-balloon enteroscopy revealed a 20-mm continuously bleeding submucosal lesion in the distal jejunum. We suspected small intestinal vascular malformation and performed surgical resection. The resected specimen pathologically comprised dilated, thin-walled lymphatic channels and blood vessels involving the small intestinal submucosa. Therefore, the patient was diagnosed with small intestinal lymphatic-venous malformation. Postoperatively, the patient recovered well, and recurrence was not observed.

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