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Related Concept Videos

Giardiasis01:12

Giardiasis

Giardiasis is a globally prevalent intestinal infection caused by the protozoan parasite Giardia duodenalis (also known as G. lamblia or G. intestinalis). This flagellated protozoan is the most frequently identified intestinal parasite in the United States and worldwide. Transmission primarily occurs via the fecal-oral route, with infection arising from ingestion of water or food contaminated with cysts. Individuals in low-resource settings, international travelers, outdoor enthusiasts, daycare...
Other Disorders of Digestive System01:30

Other Disorders of Digestive System

The gastrointestinal tract is susceptible to various disorders. If the lower esophageal sphincter is damaged, stomach acid can flow back into the esophagus, causing irritation and inflammation of the lining. This condition is called gastroesophageal reflux disease (known as heartburn) and may cause chest pain and difficulty swallowing. In the stomach, prolonged use of nonsteroidal anti-inflammatory drugs like aspirin, chronic alcohol consumption, bacterial infections such as Helicobacter...
Gastritis-II: Pathophysiology01:17

Gastritis-II: Pathophysiology

Gastritis is marked by disruption of the mucosal barrier that usually protects the stomach tissue from digestive juices and manifests in acute and chronic forms.
In acute gastritis, the gastric mucosa becomes swollen and red and undergoes superficial erosion. Superficial ulceration may lead to bleeding.
In chronic gastritis, persistent or repeated insults lead to chronic inflammatory changes and, eventually, thinning or atrophy of the gastric tissue.
Gastritis can stem from various causes, each...
Chronic Bowel Disorders: Introduction01:17

Chronic Bowel Disorders: Introduction

Chronic bowel diseases are a group of long-term conditions affecting the digestive tract, characterized by inflammation and damage to the gut lining. These conditions primarily include irritable bowel syndrome and inflammatory bowel disease.
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 II: Crohn's Disease01:30

Inflammatory Bowel Disease II: Crohn's Disease

Introduction
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 transmural...
Gastritis II: Pathophysiology01:26

Gastritis II: Pathophysiology

The pathophysiology of gastritis begins with the colonization of the stomach lining by Helicobacter pylori (H. pylori). This bacterium spreads mainly via the oral-oral route through saliva or shared utensils, and can also be transmitted in overcrowded or unhygienic environments through contaminated water, despite its brief survival outside the body.ColonizationOnce ingested, H. pylori enters the stomach and begins colonization by navigating through the mucus layer lining the stomach wall. It...

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Related Experiment Videos

[Gastrointestinal sarcoidosis].

N Maàmouri1, S Guellouz, F Ben Hariz

  • 1Service de gastro-entérologie B, hôpital La Rabta, 1007 Tunis Jebbari, Tunisie.

La Revue De Medecine Interne
|February 23, 2010
PubMed
Summary
This summary is machine-generated.

Gastrointestinal sarcoidosis, though rare, most commonly affects the stomach. This condition can present as obstructive lesions or bleeding, and may be mistaken for malignancy. Early diagnosis and treatment are crucial for patient outcomes.

Related Experiment Videos

Area of Science:

  • Gastroenterology
  • Immunology
  • Pathology

Background:

  • Sarcoidosis is a multisystem granulomatous disease of unknown etiology.
  • Gastrointestinal involvement is infrequent, with the stomach being the most commonly affected site.
  • Noncaseating granulomas characterize sarcoidosis.

Observation:

  • Four cases of gastrointestinal sarcoidosis were retrospectively studied.
  • Gastric sarcoidosis was present in all patients.
  • One patient exhibited duodenal, ileal, and gallbladder involvement, presenting with obstructive symptoms and exudative enteropathy.

Findings:

  • Clinical presentations included obstructive intestinal manifestations, weight loss, exudative enteropathy, abdominal pain, and upper gastrointestinal bleeding.
  • Endoscopic findings varied from normal to antral congestion and gastric ulcers.
  • Histological findings were not detailed, but surgical exploration revealed a perforated duodenal ulcer.

Implications:

  • Gastric sarcoidosis can mimic gastric cancer, necessitating a high index of suspicion.
  • Upper gastrointestinal bleeding is a potential presentation of gastric sarcoidosis.
  • Systematic biopsies may be essential to diagnose less common sites of gastrointestinal sarcoidosis, such as the duodenum, small bowel, and colon.