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Related Concept Videos

The Bronchial Tree01:23

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Trachea01:22

Trachea

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Anatomical Features:
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The Respiratory System

The respiratory system is comprised of the organs that enable breathing. Air enters the nostrils and mouth, followed by the pharynx (throat) and larynx (voice box), which lead to the trachea (windpipe). In the thoracic cavity, the trachea splits into two bronchi that allow air to enter the lungs. The bronchi split into progressively smaller bronchioles and terminate in small groups of tiny sacs in the lungs called alveoli, where gas exchange occurs.

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Updated: May 16, 2026

Systematic Endobronchial Ultrasound - The Six Landmarks Approach
05:22

Systematic Endobronchial Ultrasound - The Six Landmarks Approach

Published on: August 11, 2023

Endobronchial band.

Adriano R Tonelli1, P S Sriram

  • 1*Division of Pulmonary, Critical Care and Sleep Medicine, Department of Internal Medicine, University of Florida †Malcom Randall VA Medical Center, Gainesville, FL.

Journal of Bronchology & Interventional Pulmonology
|November 22, 2012
PubMed
Summary
This summary is machine-generated.

A diagnostic bronchoscopy revealed a nonobstructing endobronchial tissue band in the left main bronchus. This finding, of uncertain origin, did not impede airway function or secretion clearance, leading to conservative management.

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The Bovine Lung in Biomedical Research: Visually Guided Bronchoscopy, Intrabronchial Inoculation and In Vivo Sampling Techniques
09:01

The Bovine Lung in Biomedical Research: Visually Guided Bronchoscopy, Intrabronchial Inoculation and In Vivo Sampling Techniques

Published on: July 3, 2014

Area of Science:

  • Pulmonology
  • Thoracic Surgery
  • Diagnostic Imaging

Background:

  • A 52-year-old male patient presented with symptoms necessitating a diagnostic bronchoscopy.
  • The patient had a known right hilar mass and an ipsilateral upper lobe endobronchial lesion requiring investigation.

Purpose of the Study:

  • To investigate the etiology and implications of an incidentally discovered endobronchial tissue band.
  • To assess the impact of the tissue band on airway patency and respiratory function.

Main Methods:

  • Diagnostic bronchoscopy was performed to evaluate the right hilar mass and left upper lobe lesion.
  • Endobronchial visualization and assessment of the left main bronchus were conducted.

Main Results:

  • A nonobstructing endobronchial tissue band was identified in the left main bronchus, proximal to the secondary carina.
  • The tissue formation did not cause airway obstruction or compromise tracheobronchial secretion clearance.

Conclusions:

  • The incidentally found endobronchial tissue band, despite its uncertain etiology, did not warrant immediate intervention.
  • Conservative management was chosen due to the absence of functional compromise, pending further observation or investigation if clinically indicated.