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Related Concept Videos

Pulmonary Cycle: Exhalation01:17

Pulmonary Cycle: Exhalation

In terms of human respiration, the act of expelling air, known as exhalation (or expiration), operates on the principle of pressure gradients. During expiration, the pressure within the lungs exceeds that of the surrounding atmosphere. Under normal conditions, quiet breathing involves passive exhalation and is free of muscular contractions. This is because the exhalation process is driven by the natural elastic recoil of the lungs and chest wall, both of which have an inherent tendency to...
Pneumothorax-I01:26

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.
Pneumothorax-II01:27

Pneumothorax-II

Pneumothorax is a medical condition defined by the buildup of air in the pleural space between the lungs and the chest wall. This accumulation of air can lead to partial or complete lung collapse, resulting in a range of clinical manifestations. Understanding the clinical presentation and effective management strategies is crucial for healthcare professionals in providing timely and appropriate care to individuals with pneumothorax.
Clinical Manifestations:
Pneumothorax II: Pathophysiology01:08

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...
Chronic Obstructive Pulmonary Disease II: Emphysema01:23

Chronic Obstructive Pulmonary Disease II: Emphysema

Emphysema, a major phenotype of chronic obstructive pulmonary disease (COPD), is characterized by irreversible destruction of alveolar walls and permanent enlargement of distal airspaces. Unlike chronic bronchitis, which primarily affects the airways, emphysema predominantly involves the lung parenchyma, where structural damage leads to airflow limitation.PathophysiologyIt most commonly results from prolonged exposure to cigarette smoke and other toxic gases, particularly cigarette smoke.
Chronic Obstructive Pulmonary Disease III: Chronic Bronchitis Features01:24

Chronic Obstructive Pulmonary Disease III: Chronic Bronchitis Features

Chronic bronchitis is a key phenotype of chronic obstructive pulmonary disease (COPD), characterized by airway-centered inflammation and mucus overproduction. It develops from long-term exposure to harmful particles or gases, most commonly cigarette smoke, which triggers a persistent inflammatory response.Cellular and Structural ChangesInflammation initially affects the large bronchi and later the smaller airways, with infiltration by immune cells, including neutrophils, macrophages, and...

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Related Experiment Video

Updated: Jul 15, 2026

The Lactate Dehydrogenase Sequestration Assay — A Simple and Reliable Method to Determine Bulk Autophagic Sequestration Activity in Mammalian Cells
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[A case of bronchopulmonary sequestration].

H Janah1, S Belabbes2, S Belasri2

  • 1Service de pneumologie, 5ème hôpital Militaire de Guelmim, université Cadi Ayyad, faculté de médecine et de pharmacie de Marrakech, Guelmim, Maroc.

Revue Des Maladies Respiratoires
|February 4, 2019
PubMed
Summary

Bronchopulmonary sequestration, a rare congenital lung abnormality, involves non-functioning lung tissue with abnormal blood supply. This case report details its radiological and surgical features in a 30-year-old male patient.

Keywords:
AngioscannerCT scanChirurgieHemoptysisHémoptysieLungPoumonSequestrationSurgerySéquestration

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Area of Science:

  • Pulmonology
  • Radiology
  • Thoracic Surgery

Background:

  • Bronchopulmonary sequestration is a rare congenital lung malformation.
  • It is characterized by non-functioning lung tissue with systemic arterial supply.

Observation:

  • A 30-year-old male presented with recurrent mild hemoptysis.
  • CT angiography identified a right inferior lobar sequestration with three systemic arteries.

Findings:

  • Surgical resection via thoracotomy and right lower lobectomy was performed.
  • The aberrant systemic vessels were surgically ligated and sectioned.

Implications:

  • This case underscores the importance of radiological diagnosis in bronchopulmonary sequestration.
  • It highlights key intraoperative findings for this rare congenital anomaly.