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Related Concept Videos

Larynx01:21

Larynx

2.0K
The human larynx, often referred to as the voice box, is an intricate organ located in the neck. It serves as a pathway for air to enter the lungs during respiration and is an essential component of voice production.
Anatomy of the Larynx
The larynx consists of various components, including cartilage, muscles, and vocal cords. Its structure includes three large unpaired cartilages—the thyroid, cricoid, and epiglottis—and three smaller paired cartilages—the arytenoids,...
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Acute Pharyngitis01:30

Acute Pharyngitis

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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:
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Chronic Pharyngitis01:23

Chronic Pharyngitis

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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,...
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Tonsillitis I: Introduction01:30

Tonsillitis I: Introduction

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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.
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Pneumonia II: Pathophysiology01:29

Pneumonia II: Pathophysiology

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The pathophysiology of pneumonia involves the following steps:
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Tonsillitis II: Management01:26

Tonsillitis II: Management

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

Updated: Aug 28, 2025

Nasal Brushing Sampling and Processing Using Digital High Speed Ciliary Videomicroscopy – Adaptation for the COVID-19 Pandemic
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Nasal Brushing Sampling and Processing Using Digital High Speed Ciliary Videomicroscopy – Adaptation for the COVID-19 Pandemic

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COVID-19 Omicron variant-induced laryngitis.

Yurika Kimura1, Eiko Hirabayashi1, Mai Yano1

  • 1Department of Otolaryngology, Tokyo Metropolitan Ebara Hospital, 4-5-10, Higashi Yukigaya, Ohta-ku, Tokyo, 145-0065, Japan.

Auris, Nasus, Larynx
|September 16, 2022
PubMed
Summary

The Omicron variant of COVID-19 can cause severe upper airway issues like laryngitis. Standard blood oxygen monitoring is insufficient for assessing severity in these cases.

Keywords:
Airway managementCOVID-19LaryngitisTracheostomyUpper airway stenosis

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Area of Science:

  • Otolaryngology
  • Infectious Diseases
  • Critical Care Medicine

Background:

  • The Omicron variant of COVID-19 primarily affects the upper respiratory tract.
  • Traditional assessment of COVID-19 severity focused on lower respiratory tract involvement.
  • Upper airway symptoms like sore throat and nasal discharge are characteristic of Omicron infections.

Observation:

  • A case of severe "omicron laryngitis" is presented in a 59-year-old male.
  • Symptoms included sore throat and difficulty swallowing, persisting for one day.
  • Laryngoscopy revealed significant laryngeal swelling and exudates.

Findings:

  • The patient required an emergency tracheostomy for airway management due to severe laryngeal swelling.
  • COVID-19, particularly the Omicron variant, can present with severe upper airway stenosis.
  • Key indicators for suspicion include muffled speech, dysphagia, severe throat pain, and inspiratory stridor.

Implications:

  • Laryngeal and pharyngeal evaluation with a flexible laryngoscope is crucial for diagnosing Omicron-related upper airway stenosis.
  • Prompt diagnosis and intervention are necessary to prevent potentially fatal outcomes.
  • This case highlights the need to consider upper airway involvement in COVID-19 patients presenting with specific symptoms.