Related Experiment Video
Updated: May 1, 2026

Flexible Colonoscopy in Mice to Evaluate the Severity of Colitis and Colorectal Tumors Using a Validated Endoscopic Scoring System
Published on: October 17, 2013
[Lower gastrointestinal bleeding secondary to Chronic Nonspecific Ulcerative Colitis: A clinical case]
Miguel Ángel Martínez-Cárdenas1, Miriam Noemí García-Vázquez1, Martha Elena López-González2
1Instituto Mexicano del Seguro Social, Centro Médico Nacional del Bajío, Hospital de Gineco Pediatría No. 48, Dirección de Educación e Investigación en Salud. León, Guanajuato, México.
This case highlights a rare pediatric presentation of ulcerative colitis (UC) in an adolescent experiencing lower gastrointestinal bleeding (GIB). The study details the clinical, endoscopic, and pathological findings confirming UC as the cause of GIB.
Area of Science:
- Pediatric Gastroenterology
- Inflammatory Bowel Disease
Background:
- Gastrointestinal bleeding (GIB) is uncommon in children, with upper tract bleeding being more frequent than lower tract bleeding.
- Ulcerative colitis (UC) is a chronic inflammatory bowel disease with variable severity and presentation.
- Etiology of pediatric GIB varies significantly with age group.
Related Concept Videos
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 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...
Peptic Ulcer Disease III: Clinical Manifestations and Complications
Inflammatory Bowel Disease I: Introduction
Inflammatory Bowel Disease II: Ulcerative Colitis
Inflammatory Bowel Disease IV: Clinical Manifestations

