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Larynx

Larynx

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, corniculates, and...

Pneumothorax II: Pathophysiology

Pneumothorax II: Pathophysiology

Pneumothorax means the presence of air in the pleural space — the thin potential gap between the visceral and parietal pleura. This condition disrupts the normal pressure balance that keeps the lungs inflated, leading to partial or complete collapse of the affected lung.Normal physiologyUnder normal conditions, the pleural space maintains a slightly negative intrapleural pressure, which keeps the lungs expanded against the chest wall. This negative pressure creates a delicate balance between...

Cardiopulmonary Resuscitation V: Advanced Airway Management Techniques

Cardiopulmonary Resuscitation V: Advanced Airway Management Techniques

Airway management is essential in emergency and surgical medicine, ensuring ventilation and oxygenation in patients who cannot maintain their own airway. Clinicians use a range of techniques and devices to secure the airway, depending on the patient’s condition and the clinical context. Key methods include endotracheal intubation, rapid sequence intubation (RSI), supraglottic airway devices, and advanced visualization aids. In cases where these approaches fail, surgical airway interventions are...

Pleura of the Lungs

Pleura of the Lungs

The lungs are nestled in a cavity, shielded by the pleura. The pleura, a form of serous membrane, wraps around each lung. This membrane arrangement consists of two layers: the visceral and parietal pleurae. The visceral pleura lines the surface of the lungIn contrast, the parietal pleura is the outer layer and contacts to the thoracic wall, the mediastinum, and the diaphragm. The hilum is the point of connection between the visceral and parietal layers. The space between the parietal and...

Pyloric Obstruction

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...

Pneumothorax-I

Pneumothorax-I

A pneumothorax is a condition where air builds up in the space between the lung and the chest wall, causing the lung to collapse. This condition arises when air enters the space between the parietal and visceral pleura, disrupting the negative pressure essential for lung inflation. This can lead to a partial or complete collapse of the lung.
Pneumothorax can be even further classified as spontaneous, traumatic, and tension pneumothorax.

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Related Experiment Video

Updated: May 20, 2026

Learning Modern Laryngeal Surgery in a Dissection Laboratory

Learning Modern Laryngeal Surgery in a Dissection Laboratory

Published on: March 18, 2020

Laryngopyocele.

O Lebecque¹, B Coulier, V Cloots

¹Department of Radiology, Saint Luc Hospital, Bouge, Belgium. Olivier.lebecque@gmail.com

JBR-BTR : Organe De La Societe Royale Belge De Radiologie (SRBR) = Orgaan Van De Koninklijke Belgische Vereniging Voor Radiologie (KBVR)

|July 7, 2012

Summary

This summary is machine-generated.

A paralaryngeal mass causing voice changes was diagnosed as a laryngopyocele in a 31-year-old man. Endoscopic laser surgery successfully treated the condition, resolving symptoms.

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Area of Science:

Otolaryngology
Medical Imaging
Surgical Procedures

Background:

Dysphonia, or voice impairment, can indicate various laryngeal pathologies.
Paralaryngeal masses require accurate diagnosis for effective management.
Laryngopyocele is a rare condition involving pus accumulation in the larynx.

Observation:

A healthy 31-year-old male presented with hoarseness.
Laryngoscopy identified an epiglottic mass.
CT scan revealed a rim-enhanced paralaryngeal mass.

Findings:

The imaging and clinical presentation were consistent with a laryngopyocele.
Endoscopic laser surgery was performed for diagnosis and treatment.
The surgical intervention confirmed the laryngopyocele diagnosis.

Implications:

This case highlights the importance of CT imaging in diagnosing rare laryngeal masses.
Endoscopic laser surgery offers a minimally invasive treatment option for laryngopyocele.
Prompt diagnosis and surgical intervention can effectively resolve dysphonia caused by laryngopyocele.