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Chronic GI bleeding in a middle-aged woman
  1. Hiroki Kitamoto1,
  2. Masashi Fukushima2,
  3. Tetsuro Inokuma2
  1. 1 Department of Gastroenterology and Hepatology, Graduate School of Medicine, Kyoto University, Kyoto, Japan
  2. 2 Department of Gastroenterology and Hepatology, Kobe City Medical Center General Hospital, Kobe, Japan
  1. Correspondence to Dr Hiroki Kitamoto, Department of Gastroenterology and Hepatology, Graduate School of Medicine, Kyoto University, Sakyo-ku, Kyoto 606-8507, Japan; ktmt0918{at}gmail.com

Footnotes

  • Contributors HK participated in the diagnosis and drafted the manuscript. MF participated in the diagnosis. TI supervised the manuscript. All authors read and approved the final manuscript.

  • Competing interests None declared.

  • Provenance and peer review Not commissioned; externally peer reviewed.

  • Collaborators Chihiro Ichikawa, Yukihiro Imai.

  • Patient consent for publication Obtained.

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Jejunal submucosal aneurysm.

We considered the lesion to be a solid tumour such as a GI stromal tumour and injected India ink nearby to facilitate identification for surgical resection without obtaining a biopsy specimen to avoid uncontrollable haemorrhage. The patient underwent laparoscopic segmental resection. Histopathological examination of the lesion revealed a 5 mm diameter sac-like submucosal arterial aneurysm (figure 2A–C).

Figure 2

Macroscopic view of the cut surface of the resected lesion (A). Histopathological findings of H&E stain (B) and Elastica van Gieson stain (C). The aneurysm contained an organised haematoma and communicated with two arteries but no veins. Abnormal vessels indicative of an arteriovenous malformation were not found.

Submucosal aneurysm of the small intestine is a rare GI vascular lesion originally reported by Levine and Valk.1 Once bleeding develops, massive haematochezia usually results with a sudden onset, leading to life-threatening haemorrhagic shock. It is quite uncommon to see chronic gentle bleeding such as in our case. As emergency surgery is usually performed before an endoscopic diagnosis has been made, to the best of our knowledge, this is the first case in which endoscopic images of the lesion at haemostasis were obtained, except for one previous report of a ruptured case.2 According to an endoscopic classification system for small-intestinal vascular lesions, the Yano-Yamamoto classification,3 this lesion could be classified as type 4. Initially, it may be difficult to identify this lesion as a vascular lesion. Note that obtaining biopsy specimens from SMT-like lesions without first ruling out vascular lesions by endoscopic ultrasonography or other imaging carries a potential risk of massive bleeding.

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Footnotes

  • Contributors HK participated in the diagnosis and drafted the manuscript. MF participated in the diagnosis. TI supervised the manuscript. All authors read and approved the final manuscript.

  • Competing interests None declared.

  • Provenance and peer review Not commissioned; externally peer reviewed.

  • Collaborators Chihiro Ichikawa, Yukihiro Imai.

  • Patient consent for publication Obtained.

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