Multiple Arteriovenous Malformations of the Small Bowel

Arteriovenous malformations
Antegrade double-balloon enteroscopy. A pulsatile submucosal uplift accompanied by a small red patch on the top of the uplift in the jejunum (a). Two clips were placed in close proximity to the submucosal uplift (b).

Case of gastrointestinal bleeding in 62-year-old female, the cause for which was unidentified for 5 years.

This article describes the case of a 62-year-old female with multiple arteriovenous malformations of the small bowel. The patient presented to the hospital with gastrointestinal bleeding. Doctors advised an esophagogastroduodenoscopy (EGD) and colonoscopy which did not reveal any significant findings. There was no evident source of bleeding on the computed tomography (CT) with delayed phase imaging. Video capsule endoscopy was also carried out for small bowel evaluation, which also did not reveal the source of bleeding, except for blood clots in the jejunem.

The patient was further advised antegrade DBE for evaluation. However, no active bleeding and sources of bleeding were observed. However, she had recurrent bloody stool about once a year over a time period of 5 years. Although all small bowel evaluations were repeated, the cause of bleeding was not identified. In addition, she subsequently presented with intermittent bloody stools and a fall in hemoglobin. VCE was repeated which was remarkable of localised blood clots in the jejunum. The antegrade DBE showed a pulsatile uplift accompanied by a small red patch on the top with no sign of active bleeding 30 cm from the anal side from the ligament Treitiz in the jejunum.

Arteriovenous malformations

The findings were consistent with the diagnosis of arteriovenous malformations, which are an important vascular cause of bleeding in the small bowel. Although, it is often difficult to diagnose. A selected angiography with indocyanine green (ICG) injection was performed to identify the location of the lesions. This allowed a clear observation of the region. Treatment included small-bowel resection with minimal surgical margin.

The patient was doing well at her 2-year follow-up and denied any signs of small bowel bleeding.


Management of Multiple Arteriovenous Malformations of the Small Bowel

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Dr. Aiman Shahab is a dentist with a bachelor’s degree from Dow University of Health Sciences. She is an experienced freelance writer with a demonstrated history of working in the health industry. Skilled in general dentistry, she is currently working as an associate dentist at a private dental clinic in Karachi, freelance content writer and as a part time science instructor with Little Medical School. She has also been an ambassador for PDC in the past from the year 2016 – 2018, and her responsibilities included acting as a representative and volunteer for PDC with an intention to make the dental community of Pakistan more connected and to work for benefiting the underprivileged. When she’s not working, you’ll either find her reading or aimlessly walking around for the sake of exploring. Her future plans include getting a master’s degree in maxillofacial and oral surgery, settled in a metropolitan city of North America.


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