Related Experiment Video
Updated: Jan 10, 2026

Evaluating Therapeutic Interventions in the SHIP-deficient Mouse Model of Crohn Disease-like Ileitis and Fibrosis
Published on: October 14, 2025
Small Vessel Vasculitis Mimicking Inflammatory Bowel Disease
Kaushik Puranam1, Tara A Seibert1, Jeremy D Ward2
1Department of Medicine, Duke University School of Medicine, Durham, NC.
Proteinase 3 (PR3)-antineutrophil cytoplasmic autoantibody (ANCA) vasculitis can present unusually, even with gastrointestinal issues and a penile ulcer. Early diagnosis requires a high suspicion, supported by endoscopic and renal findings, and PR3-ANCA testing.
Area of Science:
- Rheumatology
- Nephrology
- Gastroenterology
Background:
- Proteinase 3 (PR3)-antineutrophil cytoplasmic autoantibody (ANCA) vasculitis is a rare necrotizing small vessel vasculitis.
- Variable and nonspecific presentations pose diagnostic challenges in ANCA-associated vasculitides (AAV).
More Related Videos
05:08A TNBS-Induced Rodent Model to Study the Pathogenic Role of Mechanical Stress in Crohn's Disease
Published on: March 1, 2022
09:44Functional Assessment of Intestinal Motility and Gut Wall Inflammation in Rodents: Analyses in a Standardized Model of Intestinal Manipulation
Published on: September 11, 2012
Related Concept Videos
Inflammatory 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...
Inflammatory 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...
Chronic Bowel Disorders: Introduction
Irritable Bowel Syndrome (IBS) is a common disorder affecting the gastrointestinal tract. The distinctive feature is recurrent abdominal pain associated with altered bowel movements, manifesting as constipation, diarrhea, or fluctuating between both. The...
Inflammatory Bowel Disease IV: Pharmacological Management
Pharmacologic...
Inflammatory Bowel Disease III: Diagnostic Studies and Management I-Nutritional Therapy
Diagnostic studies
A colonoscopy is the definitive screening test, distinguishing ulcerative colitis from other colon diseases with similar symptoms. During a colonoscopy test, inflamed mucosa with exudate ulcerations can be observed, and biopsies are taken to determine the histologic characteristics of the...
Inflammatory Response I: Vascular and Cellular