Related Experiment Video
Updated: Mar 29, 2026

Author Spotlight: Investigating the Key Factors of Obliterative Bronchiolitis After Lung Transplantation
Published on: November 10, 2023
A 54-Year-Old Man with Tracheomegaly, Tracheal Diverticulas and Bronchiectasis--Mounier-Kuhn Syndrome
Abstract:
Mounier-Kuhn syndrome is a rare idiopathic clinical, radiological and bronchoscopic disorder characterised by abnormal dilatation of the tracheo-bronchial tree. The usual presentation is with recurrent lower respiratory tract infections. Herein, we report the case of an adult male who was diagnosed to have Mounier-Kuhn syndrome based on radiographic finding of a tracheal diameter of 45.5 mm on computed tomography and dynamic complete collapse of the tracheo-bronchial tree on forced expiration, observed during ronchoscopy.
Related Concept Videos
Trachea
Anatomical Features:
Location: About half of the trachea is situated in the neck, anterior to the esophagus, and extends from the larynx (at the level of...
The Bronchial Tree
The trachea, commonly known as the windpipe, is a tube that connects the larynx (voice box) to the bronchi. At a point called the carina, it bifurcates into two primary bronchi. The right primary bronchus is wider, shorter, and more vertical than the left primary...
Tracheostomy: Procedure and Tubes
Tracheostomy tubes can be made of semiflexible plastic (polyurethane or silicone), rigid plastic, or metal, and they come in...
Tracheostomy Decannulation
Description of the Procedure
Decannulation refers to the permanent removal of the tracheostomy tube, signaling the resolution of the condition that initially necessitated the tracheostomy. The process requires a well-coordinated interplay between...
Anatomy of Respiratory System II: Lower Respiratory Tract
The Larynx
It is located between the pharynx and the trachea, acts as a passageway for air, and hosts several critical structures, such as the epiglottis, vocal cords, and glottis. The epiglottis acts as a gateway, guiding food to the...
Oxygen Delivering System III: Tracheostomy and T-piece
Tracheostomy
A tracheostomy is a surgically created opening (stoma) in the anterior part of the trachea. It is used to establish a patient airway, bypass an upper airway obstruction, simplify the removal of secretions, permit long-term...

