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Appendicitis

Appendicitis

Appendicitis is an acute inflammatory condition of the vermiform appendix, most commonly caused by obstruction of its lumen. The appendix is a narrow, blind-ended pouch that extends from the cecum, making it particularly prone to obstruction. Causes include fecaliths, lymphoid hyperplasia (often after viral infections), parasites, tumors, or foreign bodies. This obstruction initiates a cascade of pathological changes.Luminal Obstruction and Early InflammationAfter obstruction, normal mucosal...

Appendicitis-I: Introduction

Appendicitis-I: Introduction

The appendix, a small, narrow, blind tube extending from the inferior part of the cecum, is widely regarded as a vestigial organ, having lost much of its original function through evolution. Despite its diminished role, the appendix can become inflamed, a condition known as appendicitis.
Etiology: Appendicitis can arise from various causes, primarily rooted in the obstruction of the appendix lumen. Factors contributing to this obstruction include fecal accumulation, lymphoid hyperplasia and, in...

Diverticular Disease of the Colon

Diverticular Disease of the Colon

Diverticular disease involves the formation of diverticula—small sac-like outpouchings of the colonic wall—and their complications. It most commonly affects the sigmoid colon due to higher intraluminal pressure and structural vulnerability. It results from structural weakness and increased pressure in the colon, producing pseudodiverticula that may remain silent or progress to inflammation and serious complications.Structure of DiverticulaIn diverticulosis, these outpouchings are...

Inflammatory Bowel Disease II: Crohn's Disease

Inflammatory Bowel Disease II: Crohn's Disease

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Crohn's disease
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Appendicitis-II: Diagnostic Studies and Management

Appendicitis-II: Diagnostic Studies and Management

Diagnosing and managing appendicitis requires a structured and comprehensive approach that spans from initial assessment to postoperative care. Here is an overview of the process:
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Related Experiment Video

Updated: Jul 5, 2026

The Pocket-Creation Procedure of Endoscopic Submucosal Dissection for Large Rectal Laterally Spreading Tumors

The Pocket-Creation Procedure of Endoscopic Submucosal Dissection for Large Rectal Laterally Spreading Tumors

Published on: February 13, 2026

Appendiceal granulation polyp.

Liron Pantanowitz¹

¹Department of Pathology, Baystate Medical Center, Tufts University School of Medicine, Springfield, Massachusetts 01199, USA. Liron.pantanowitz@bhs.org

International Journal of Surgical Pathology

|May 16, 2008

Summary

This summary is machine-generated.

Appendiceal granulation polyps are rare growths in the vermiform appendix. This case study details a polyp in a 9-year-old boy, likely caused by chronic irritation from an appendicostomy.

Related Experiment Videos

Last Updated: Jul 5, 2026

The Pocket-Creation Procedure of Endoscopic Submucosal Dissection for Large Rectal Laterally Spreading Tumors

The Pocket-Creation Procedure of Endoscopic Submucosal Dissection for Large Rectal Laterally Spreading Tumors

Published on: February 13, 2026

Area of Science:

Gastroenterology
Pediatric Surgery
Pathology

Background:

Appendiceal granulation polyps are uncommon lesions originating from the vermiform appendix.
Their occurrence is often linked to surgical interventions involving the appendix.

Observation:

This report presents a case of an appendiceal granulation polyp in a 9-year-old boy.
The patient had undergone a surgical procedure creating an appendicostomy.

Findings:

The polyp's pathology is detailed, highlighting its development in the context of the patient's medical history.
Chronic irritation from the surgical stoma is identified as a probable cause.

Implications:

Understanding the etiology of these polyps is crucial for managing complications after appendiceal surgery.
This case contributes to the literature on rare pediatric gastrointestinal conditions and surgical outcomes.