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Related Concept Videos

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...
Esophageal Achalasia01:27

Esophageal Achalasia

Esophageal achalasia is a chronic neurogenic disorder characterized by impaired relaxation of the lower esophageal sphincter (LES) and absent or ineffective peristalsis in the distal esophagus. This leads to a functional obstruction without a physical blockage, despite significant disruption of esophageal motility.EtiologyAchalasia is caused by degeneration of the myenteric (Auerbach's) plexus, specifically the loss of inhibitory ganglion cells that produce vasoactive intestinal peptide (VIP)...
Deglutition01:25

Deglutition

Swallowing, otherwise known as deglutition, facilitates the transport of food from the mouth to the stomach. It is a multifaceted process that involves both the tongue and the muscles of the throat and esophagus. Saliva and mucus aid in this process, which takes approximately 4 to 8 seconds for semi-solid or solid food and around 1 second for liquids or very soft food.
Swallowing can be divided into three stages: the voluntary phase, the pharyngeal phase, and the esophageal phase. Although the...
Esophageal Strictures-II: Clinical Features and Management01:26

Esophageal Strictures-II: Clinical Features and Management

Patients with esophageal strictures often experience a range of symptoms. Initially, they may have difficulty swallowing solid foods, which can progress to include liquids. Additional symptoms may involve chest pain or discomfort, regurgitating food and fluids, heartburn, unintentional weight loss, coughing or choking during meals, and hoarseness.
Healthcare providers should gather a comprehensive medical history and conduct a physical examination for diagnosis. If esophageal stricture is...
Esophageal Strictures-I: Introduction01:30

Esophageal Strictures-I: Introduction

Esophageal strictures involve abnormal narrowing or tightening of the esophagus. They vary in length and severity, ranging from mild constriction to complete obstruction, and are classified as benign (noncancerous) or malignant (cancerous).
Etiology
The primary cause of esophageal strictures is long-standing gastroesophageal reflux disease (GERD), accounting for about 70 to 80% of adult cases. Chronic acid reflux can lead to injury and scarring of the esophageal lining, culminating in...
Esophagus01:24

Esophagus

The esophagus, a muscular conduit linking the pharynx and stomach, measures roughly 10 inches (25.4 cm) and sits behind the trachea. It remains collapsed when not swallowing. The esophagus follows a predominantly straight path through the thoracic mediastinum and enters the abdominal cavity through a diaphragmatic opening known as the esophageal hiatus.
The movement of edibles from the pharynx into the esophagus is facilitated by the upper esophageal sphincter, which is formed primarily by the...

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Related Experiment Video

Updated: Jun 20, 2026

Adapting Human Videofluoroscopic Swallow Study Methods to Detect and Characterize Dysphagia in Murine Disease Models
08:32

Adapting Human Videofluoroscopic Swallow Study Methods to Detect and Characterize Dysphagia in Murine Disease Models

Published on: March 1, 2015

A child with difficulty swallowing.

Andrew Pittard1, Thomas J Abramo, Donald H Arnold

  • 1Departments of Pediatrics, Vanderbilt University School of Medicine, Nashville, TN, USA.

Pediatric Emergency Care
|August 19, 2009
PubMed
Summary
This summary is machine-generated.

Difficulty swallowing in children can signal acute disseminated encephalomyelitis (ADEM). This case highlights the need for broader differential diagnoses beyond common causes when symptoms persist.

More Related Videos

Coordinate Mapping of Hyolaryngeal Mechanics in Swallowing
14:13

Coordinate Mapping of Hyolaryngeal Mechanics in Swallowing

Published on: May 6, 2014

Related Experiment Videos

Last Updated: Jun 20, 2026

Adapting Human Videofluoroscopic Swallow Study Methods to Detect and Characterize Dysphagia in Murine Disease Models
08:32

Adapting Human Videofluoroscopic Swallow Study Methods to Detect and Characterize Dysphagia in Murine Disease Models

Published on: March 1, 2015

Coordinate Mapping of Hyolaryngeal Mechanics in Swallowing
14:13

Coordinate Mapping of Hyolaryngeal Mechanics in Swallowing

Published on: May 6, 2014

Area of Science:

  • Pediatric Neurology
  • Infectious Diseases
  • Demyelinating Diseases

Background:

  • Difficulty swallowing (dysphagia) is a frequent emergency department complaint in children.
  • Acute disseminated encephalomyelitis (ADEM) is a rare, immune-mediated demyelinating disorder.
  • ADEM typically follows an infection or vaccination, presenting with encephalopathy and neurological deficits.

Observation:

  • A male child presented with dysphagia as the initial symptom.
  • Standard evaluations for common causes of dysphagia were inconclusive.
  • The child was subsequently diagnosed with ADEM.

Findings:

  • This case illustrates dysphagia as an unusual early presentation of ADEM.
  • ADEM is characterized by widespread inflammation and demyelination in the central nervous system.
  • Neurologic manifestations of ADEM are typically multifocal and acute or subacute.

Implications:

  • Pediatricians and emergency physicians should consider ADEM in children with unexplained dysphagia.
  • Early recognition of ADEM is crucial for timely intervention and management.
  • This case underscores the importance of considering less common diagnoses for persistent, unexplained symptoms.