Related Experiment Video
Updated: Aug 1, 2026
10:01
Development of Obliterative Bronchiolitis in a Murine Model of Orthotopic Lung Transplantation
Published on: July 10, 2012
[Radiation-induced bronchiolitis obliterans with organizing pneumonia]
Summary
Bronchiolitis obliterans with organizing pneumonia (BOOP) is an inflammatory lung condition. While not solely caused by radiotherapy, it can occur post-breast irradiation, requiring steroid treatment.
Area of Science:
- Pulmonary Medicine
- Oncology
- Radiology
Background:
- Bronchiolitis obliterans with organizing pneumonia (BOOP) is an inflammatory lung condition.
- It can be a consequence of various pulmonary affections, not exclusively radiotherapy.
- Distinguishing radiation-induced BOOP from post-radiation pulmonary fibrosis is crucial.
Observation:
- BOOP occurs in approximately 1% of breast cancer patients undergoing irradiation.
- Symptoms include fever, dry cough, and dyspnea, appearing months to a year post-treatment.
- The exact roles of immunity, inflammation, and radiosensitivity in BOOP pathogenesis remain unclear.
Findings:
- Treatment involves prolonged steroid or immunosuppressant therapy.
- Despite treatment, 15% of patients experience chronic conditions and 5% may die.
- Approximately 80% of patients achieve full recovery without lasting effects.
Implications:
- Early diagnosis and appropriate management of BOOP are vital for breast cancer survivors.
- Further research is needed to elucidate the mechanisms underlying BOOP and optimize treatment strategies.
- Understanding the distinction between radiation-induced BOOP and other radiation-related lung injuries is essential for accurate patient care.
Keywords:
BOOPBreast cancerBronchiolite oblitérante avec organisation pneumoniqueBronchiolitis obliterans with organizing pneumoniaCancer du seinCorticostéroïdesRadiation therapyRadiothérapieSteroidMore Related Videos
Related Concept Videos
01:17Pulmonary 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...
01:17Other Pulmonary Disorders
Respiratory disorders encompass a range of conditions with varying levels of severity. Asthma, marked by chronic airway inflammation and hypersensitivity, is one such condition. It can lead to airway obstruction due to factors like bronchial spasms, mucosal edema, increased mucus secretion, or epithelial damage. Asthma triggers are diverse, ranging from allergens to emotional upset, and treatment focuses on both immediate relief through bronchodilators and long-term inflammation suppression.
01:20Chronic Obstructive Pulmonary Disease-II: Pathophysiology
Chronic Obstructive Pulmonary Disease (COPD) pathophysiology is intricate and multifaceted, involving a complex interplay of physiological processes. Understanding these mechanisms is crucial for effectively managing and treating COPD. Here is an in-depth look at the critical elements in the pathophysiology of COPD:
Chronic Inflammation
Chronic Inflammation
01:23Chronic Obstructive Pulmonary Disease I: Introduction
Chronic obstructive pulmonary disease is a common, preventable, and treatable respiratory disorder characterized by persistent symptoms and progressive airflow limitation. This limitation results from a combination of small-airway disease (obstructive bronchiolitis) and parenchymal destruction (emphysema), both driven by chronic inflammation from exposure to harmful particles or gases.The disease includes two main pathological entities: emphysema, marked by destruction of alveolar walls and...
01:23Chronic 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.
01:24Chronic 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...