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Related Concept Videos

Tonsillitis I: Introduction01:30

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: Management01:26

Tonsillitis II: Management

This lesson will focus on the different treatment options for managing tonsillitis, which typically depend on the cause and severity.
Acute Pharyngitis01:30

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:
Chronic Pharyngitis01:23

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,...
Pathophysiology of Vomiting01:22

Pathophysiology of Vomiting

Vomiting is a complex physiological response to expel harmful or irritating substances from the body. It's a defensive mechanism triggered by stimuli like poisons, microbial toxins, cytotoxic drugs, and mechanical abdominal distension. The process is centrally coordinated by the vomiting (or emetic) center located in the medulla of the brainstem. This area, rich in muscarinic M1, histamine H1, neurokinin 1 (NK1), and serotonin 5-HT3 receptors, coordinates the act of vomiting through interaction...
Pyloric Obstruction01:11

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...

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Related Experiment Video

Updated: Jun 15, 2026

Ear Plaster Therapy as a Safe and Effective Treatment for Gestational Vomiting
05:33

Ear Plaster Therapy as a Safe and Effective Treatment for Gestational Vomiting

Published on: August 4, 2023

[A boy with earache and vomiting].

Marcel J H Aries1, Linda C Meiners

  • 1Universitair Medisch Centrum Groningen, Afd. Neurologie, The Netherlands. m.j.h.aries@neuro.umcg.nl

Nederlands Tijdschrift Voor Geneeskunde
|February 25, 2010
PubMed
Summary
This summary is machine-generated.

An 8-year-old boy experienced severe earache and vomiting. This was caused by otomastoiditis, a complication involving acute thrombosis of the sigmoid sinus.

Related Experiment Videos

Last Updated: Jun 15, 2026

Ear Plaster Therapy as a Safe and Effective Treatment for Gestational Vomiting
05:33

Ear Plaster Therapy as a Safe and Effective Treatment for Gestational Vomiting

Published on: August 4, 2023

Area of Science:

  • Otolaryngology
  • Pediatric Medicine
  • Vascular Surgery

Background:

  • Otomastoiditis is an infection of the middle ear and mastoid bone.
  • Thrombosis of the sigmoid sinus is a rare but serious complication of otomastoiditis.

Observation:

  • An 8-year-old boy presented with symptoms of earache and vomiting.
  • Clinical examination and imaging confirmed otomastoiditis.

Findings:

  • Acute thrombosis of the sigmoid sinus was diagnosed in the affected sinus.
  • The patient's symptoms were directly attributed to this vascular complication.

Implications:

  • Early diagnosis and aggressive management of otomastoiditis are crucial to prevent severe complications.
  • This case highlights the importance of considering vascular involvement in pediatric otomastoiditis.
  • Prompt treatment can mitigate risks associated with sigmoid sinus thrombosis.