Related Experiment Video
Updated: Aug 9, 2026

04:44
Imaging Features of Systemic Sclerosis-Associated Interstitial Lung Disease
Published on: June 16, 2020
Summary
Large lung bullae are a rare complication of pulmonary sarcoidosis. This condition, characterized by air-filled sacs in the lungs, can occur alongside other sarcoidosis symptoms.
Area of Science:
- Pulmonology
- Internal Medicine
- Radiology
Background:
- Pulmonary sarcoidosis is a multisystem granulomatous disease.
- Large lung bullae are an uncommon but recognized complication of pulmonary sarcoidosis.
- Understanding the presentation and course of bullous sarcoidosis is important for patient management.
Purpose of the Study:
- To describe the clinical presentation, course, and outcome of patients with pulmonary sarcoidosis complicated by large lung bullae.
- To highlight the rarity and potential manifestations of this specific sarcoidosis complication.
Main Methods:
- Retrospective case series analysis.
- Review of clinical records, imaging (chest X-ray, CT scans), and laboratory data of three patients.
- Correlation of bullae development with sarcoidosis diagnosis and clinical course.
Main Results:
- Three patients with large lung bullae as a manifestation of pulmonary sarcoidosis were identified.
- All patients presented with pulmonary infiltrates; two had bilateral hilar adenopathy.
- Hypercalcemia developed in all three patients during their illness.
- Bullae developed within four years of sarcoidosis diagnosis.
- In one case, an infected bulla showed significant resolution after treatment.
Conclusions:
- Large lung bullae represent a rare but distinct manifestation of pulmonary sarcoidosis.
- The presence of pulmonary infiltrates and hypercalcemia may be associated findings.
- The temporal relationship between sarcoidosis diagnosis and bullae formation is noted.
- Bullous lesions in sarcoidosis may be dynamic and potentially responsive to interventions, even after infection.
Related Concept Videos
Gross Anatomy of the Lungs
The lungs are a pair of vital organs connected to the trachea via the left and right bronchi. The base of these organs meets the dome-shaped muscle known as the diaphragm. Encased by the pleurae, the lungs contact the mediastinum. The right lung is shorter yet wider, and has a larger volume than the left lung. The left lung has an indentation known as the cardiac notch. The superior region of the lungs is referred to as the apex, whereas the base is the lower region near the diaphragm. The...
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...
Pulmonary Tuberculosis II
Tuberculosis, or TB, is a bacterial infectious disease caused by Mycobacterium tuberculosis. While its primary impact is on the lungs, leading to pulmonary tuberculosis, it can also affect various other organs, a condition referred to as extrapulmonary tuberculosis.
Here is a detailed explanation of its pathophysiology:
Transmission: The process begins when a person inhales droplet nuclei containing M. tuberculosis. These are typically released into the air when an individual with pulmonary or...
Here is a detailed explanation of its pathophysiology:
Transmission: The process begins when a person inhales droplet nuclei containing M. tuberculosis. These are typically released into the air when an individual with pulmonary or...
Pulmonary Tuberculosis III
Tuberculosis (TB) is a contagious infection primarily affecting the lung parenchyma but which can also affect other body parts. TB can be classified based on disease development, presentation, and the affected anatomical site.
The first classification is based on the development of the disease, and it includes the following categories:
The first classification is based on the development of the disease, and it includes the following categories:
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:
Clinical Manifestations:
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.

