Related Experiment Video
Updated: Jan 2, 2026
Multimodality Diagnosis of Mesenteric Ischemia
Published on: July 21, 2023
Colonic Polypoid Arteriovenous Malformation Causing Symptomatic Anemia
Allison Rzepczynski1, Jason Kramer2, Shriram Jakate3
1Department of Internal Medicine, Rush University Medical Center, Chicago, IL.
Arteriovenous malformations (AVMs) are rare causes of lower GI bleeding. This case study details a unique polypoid colonic AVM successfully treated with endoscopic resection, offering insights into managing these unusual vascular lesions.
Area of Science:
- Gastroenterology
- Vascular Surgery
- Endoscopy
Background:
- Vascular ectasias, including arteriovenous malformations (AVMs), constitute about 3% of lower gastrointestinal bleeding cases.
- Colonic AVMs typically present as solitary, large, flat, or elevated red lesions during endoscopic examination.
Observation:
- A rare case of a polypoid, ulcerated AVM in the transverse colon was identified.
- The patient presented with symptomatic anemia attributed to the colonic AVM.
Findings:
- The polypoid colonic AVM was successfully resected using endoscopic techniques.
- Post-resection, the patient's symptoms of anemia resolved, confirming the effectiveness of the intervention.
Implications:
- This case underscores the rarity of polypoid colonic AVMs, with only 15 previously reported instances.
- The successful endoscopic management highlights a viable approach for these uncommon gastrointestinal vascular lesions.
- Further understanding of endoscopic management strategies for rare colonic AVM presentations is warranted.
More Related Videos
05:43The Role of Anatomical Dissection in Defining Colic and Small Bowel Artery Lymphovascular Bundles in the D3 Volume of Small and Large Bowel Mesentery
Published on: August 1, 2025
07:34Microsurgical Venous Pouch Arterial-Bifurcation Aneurysms in the Rabbit Model: Technical Aspects
Published on: May 11, 2011
Related Concept Videos
01:28Esophageal Varices-II: Clinical Features and Management
In the initial assessment, a thorough review of the patient's medical history is vital to identify risk factors such as liver disease, alcohol...
01:27Disorders of Erythrocytes
Erythrocyte disorders can be broadly categorized into two main types: anemic and polycythemic conditions.
A low oxygen-carrying capacity of the blood due to the loss, lower production, or destruction of erythrocytes is termed anemia. Hemorrhagic anemia, for example, occurs when bleeding from an external wound or internal ulcer reduces erythrocyte counts.
On the other...
01:27Inflammatory Bowel Disease I: Ulcerative Colitis
Inflammatory bowel disease, or IBD, encompasses a group of disorders characterized by chronic inflammation or ulceration of the gastrointestinal tract.
Risk Factors
The exact cause of IBD remains unclear, although it is believed to be due to a mix of genetic, environmental, microbial, and immune factors. Genetic factors are significant in determining susceptibility to IBD, with family history being a critical risk factor. Individuals with a first-degree relative who has IBD are at...
01:24Esophageal Varices-I: Introduction
01:25Assessment of the Rectum and Anus
Rectal Inspection
Begin by inspecting the perianal and anal areas for color, texture, rashes,...
01:30Inflammatory Bowel Disease II: Crohn's Disease
Inflammatory bowel disease, commonly known as IBD, refers to a collection of disorders that lead to persistent inflammation of the gastrointestinal tract. The two types of IBD are ulcerative colitis, which impacts the colon, and Crohn's disease, which can involve any part of the gastrointestinal segment.
Crohn's disease
Crohn's disease is a chronic, systemic inflammatory bowel disease (IBD) that predominantly affects the gastrointestinal tract. It is marked by...