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Gastritis II: Pathophysiology

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...

Pyloric Obstruction

Pyloric Obstruction

Pyloric obstruction, also referred to as gastric outlet obstruction, is a condition characterized by narrowing or blockage at the pylorus—the muscular valve regulating the flow of stomach contents into the duodenum. When this passage becomes impaired, the stomach cannot effectively empty its contents into the small intestine. This disruption leads to a range of gastrointestinal symptoms, including early satiety, bloating, epigastric pain, postprandial nausea, persistent vomiting, and...

Gastritis-I: Introduction and Types

Gastritis-I: Introduction and Types

Gastritis, defined by the inflammation or irritation of the stomach lining or gastric mucosa, manifests in several distinct forms: acute, chronic, reactive, and a specific subtype known as autoimmune metaplastic atrophic gastritis.
Acute gastritis presents as a sudden inflammation triggered by various stressors to the stomach lining, such as exposure to corrosive agents, local irritants like aspirin and other NSAIDs, alcohol consumption, radiation therapy, physical trauma, severe burns, sepsis,...

Gastritis-II: Pathophysiology

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...

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Related Experiment Videos

[The gastric plasmacytoma--a case report].

I Marin¹, H Doran, E Catrina

¹Clinica de chirurgie "Prof. I. Juvara", Spitalul Clinic "Dr. I. Cantacuzino", Bucuresţi. ioanmarin@yahoo.com

Chirurgia (Bucharest, Romania : 1990)

|June 9, 2009

Summary

Gastric plasmacytoma is a rare tumor. This case highlights diagnostic challenges and successful treatment with surgery and radiotherapy, showing no recurrence after six months.

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Area of Science:

Gastroenterology
Oncology

Background:

Extramedullary plasmacytomas with gastric localization are rare, posing diagnostic challenges due to their submucosal location.
Preoperative diagnosis is often difficult, even with upper endoscopy and biopsy.

Observation:

A 54-year-old patient presented with melenic stools, but initial gastric biopsies were normal.
Imaging studies (ultrasonography, endoscopy, barium swallow) revealed a significant gastric tumor mass.

Findings:

The patient underwent gastric resection followed by radiotherapy.
The tumor was highly radiosensitive, contributing to successful treatment.

Implications:

This case underscores the importance of integrating imaging with clinical presentation for diagnosing gastric plasmacytoma.
Successful surgical and radiotherapeutic management can lead to favorable outcomes with no recurrence.
Further research into diagnostic criteria and treatment protocols for gastric plasmacytoma is warranted.