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Tonsillitis I: Introduction

Tonsillitis I: Introduction

Tonsillitis is inflammation of the tonsils, which are two lymphoid tissue masses at the back of the throat. This condition can cause discomfort and irritation in the throat.
Etiology
Three primary contributing factors have been identified.

Tonsillitis II: Management

Tonsillitis II: Management

This lesson will focus on the different treatment options for managing tonsillitis, which typically depend on the cause and severity.

Chronic Pharyngitis

Chronic Pharyngitis

Chronic pharyngitis refers to persistent inflammation of the pharyngial mucosa.
Etiology
It often arises from persistent viral or bacterial infections affecting sinuses and tonsils.
Additional contributing factors include inadequate dental hygiene, mouth breathing, recurring tonsillitis, allergic rhinitis, laryngopharyngeal reflux, and exposure to smoke, chemicals, and other environmental pollutants. Allergic reactions to pollen, mold, and pet dander, chronic cough, excessive voice usage,...

Acute Pharyngitis

Acute Pharyngitis

Introduction
Acute pharyngitis is the inflammation of the back of the throat (pharynx), commonly resulting in a sore throat. It is a frequently encountered condition that prompts individuals to seek medical advice.
Classification
Acute pharyngitis can be categorized based on its underlying cause:

Streptococcal Pharyngitis

Streptococcal Pharyngitis

Streptococcal pharyngitis, commonly known as “strep throat,” is an acute infection of the oropharyngeal tissues caused by the Gram‑positive Group A Streptococcus (Streptococcus pyogenes). Transmission occurs primarily through respiratory droplets expelled during coughing, sneezing, or talking.Mechanisms of Host Entry and Immune EvasionUpon entering the host, S. pyogenes adheres to the mucosal epithelial cells of the pharynx via surface proteins, notably lipoteichoic acid and the antiphagocytic...

Bacterial Meningitis

Bacterial Meningitis

Bacterial meningitis is a severe infectious disease involving inflammation of the meninges, the protective membranes surrounding the brain and spinal cord. It occurs when pathogenic bacteria cross the blood–brain barrier and enter the cerebrospinal fluid. Common causative organisms include Neisseria meningitidis, Streptococcus pneumoniae, Haemophilus influenzae type b, Listeria monocytogenes, and Escherichia coli K1. The exact route of entry varies by pathogen and host condition.Routes of Entry...

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Related Experiment Video

Updated: May 31, 2026

Isolation of Tonsillar Mononuclear Cells to Study Ex Vivo Innate Immune Responses in a Human Mucosal Lymphoid Tissue

Isolation of Tonsillar Mononuclear Cells to Study Ex Vivo Innate Immune Responses in a Human Mucosal Lymphoid Tissue

Published on: June 14, 2020

Tonsillitis.

Christos C Georgalas¹, Neil S Tolley, Anthony Narula

¹Department of Otolaryngology, St Mary's Hospital, London, UK.

BMJ Clinical Evidence

|July 2, 2011

Summary

This summary is machine-generated.

This systematic review examines the effectiveness and safety of tonsillectomy for severe recurrent throat infections. It found 10 studies evaluating cold-steel and diathermy tonsillectomy methods.

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CO2-Lasertonsillotomy Under Local Anesthesia in Adults

CO₂-Lasertonsillotomy Under Local Anesthesia in Adults

Published on: November 6, 2019

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Isolation of Tonsillar Mononuclear Cells to Study Ex Vivo Innate Immune Responses in a Human Mucosal Lymphoid Tissue

Isolation of Tonsillar Mononuclear Cells to Study Ex Vivo Innate Immune Responses in a Human Mucosal Lymphoid Tissue

Published on: June 14, 2020

CO2-Lasertonsillotomy Under Local Anesthesia in Adults

CO₂-Lasertonsillotomy Under Local Anesthesia in Adults

Published on: November 6, 2019

Area of Science:

Otolaryngology
Surgical Interventions
Evidence-Based Medicine

Background:

Severe tonsillitis criteria include >=5 episodes/year, lasting >=1 year, and disabling symptoms.
Distinguishing viral from bacterial tonsillitis is clinically challenging.
Accurate diagnostic tests for bacterial tonsillitis are limited; other causes include viral infections and conditions like mononucleosis.

Purpose of the Study:

To systematically review the effects of tonsillectomy in children and adults with acute recurrent or chronic throat infections.

Main Methods:

Systematic review of literature up to March 2009.
Searched Medline, Embase, The Cochrane Library, and other databases.
Included harms alerts from regulatory agencies like the FDA and MHRA.

Main Results:

Ten systematic reviews, randomized controlled trials (RCTs), and observational studies met inclusion criteria.
A GRADE evaluation was performed to assess the quality of evidence for interventions.

Conclusions:

The review presents information on the effectiveness and safety of cold-steel tonsillectomy.
The review also presents information on the effectiveness and safety of diathermy tonsillectomy.