Related Experiment Video
Updated: Oct 13, 2025

Imaging Features of Systemic Sclerosis-Associated Interstitial Lung Disease
Published on: June 16, 2020
Middle Lobe Syndrome in Silicosis
Ramakant D Dixit1, Jitendra Jalutharia1, Mukesh Goyal1
1Department of Respiratory Medicine, J. L. N. Medical College, Ajmer, Rajasthan, India.
This case study details a rare instance of silicosis causing middle lobe syndrome in a woman. Diagnosis involved bronchoscopy and CT scans revealing compressed airways due to calcified lymph nodes.
Area of Science:
- Pulmonology
- Occupational Medicine
- Radiology
Background:
- Silicosis is a lung disease caused by inhaling silica dust.
- Middle lobe syndrome is characterized by collapse or consolidation of the right middle lobe.
Observation:
- A middle-aged female presented with symptoms suggestive of middle lobe syndrome.
- Diagnostic procedures included bronchoscopy and computed tomographic (CT) scanning.
Findings:
- The patient was diagnosed with silicosis.
- CT scans revealed bronchial stenosis and right middle lobe compression caused by calcified hilar lymph nodes.
- Endobronchial silicosis co-occurred with extrinsic bronchial compression.
Implications:
- This case highlights a previously undescribed presentation of silicosis.
- It underscores the importance of considering occupational exposures in diagnosing lung conditions.
- The findings may inform diagnostic approaches for complex middle lobe syndrome cases.
Related Concept Videos
Chronic Obstructive Pulmonary Disease-III: Symptoms and Complications.
Symptoms of COPD can be classified as primary or systemic. Primary symptoms relate to reduced airflow, while systemic or extrapulmonary symptoms relate to COPD's broader impact on the body.
Primary Symptoms of COPD:
Mitral Stenosis II: Clinical features and Diagnostic Tests
Chronic Obstructive Pulmonary Disease-II: Pathophysiology
Chronic Inflammation
COPD: Pathogenesis and Clinical Features
The primary cause for the onset of COPD is cigarette smoking and exposure to air pollution. These hazardous factors initiate a chain reaction within the lungs, resulting in chronic inflammation, damage to the airways, and a...
Gross Anatomy of the Lungs
Other Pulmonary Disorders

