Related Experiment Video
Updated: Jun 6, 2026

Imaging Features of Systemic Sclerosis-Associated Interstitial Lung Disease
Published on: June 16, 2020
A young non-immunocompromised woman with diffuse alveolar opacities
Prem Parkash Gupta1, Manish Verma, Dipti Agarwal
1Department of Respiratory Medicine, Postgraduate Institute of Medical Sciences, University of Health Sciences, Rohtak, India.
Pulmonary tuberculosis can cause diffuse alveolar opacities (DAO) even in non-immunocompromised adults. Early diagnosis is crucial for treatment and preventing transmission.
Area of Science:
- Pulmonology
- Infectious Diseases
- Radiology
Background:
- Diffuse alveolar opacities (DAO) are uncommon in non-immunocompromised adults with pulmonary tuberculosis, especially in high-incidence regions like India.
- Typical presentations often lead to investigations for non-tuberculous causes.
Purpose of the Study:
- To highlight the importance of considering pulmonary tuberculosis in the differential diagnosis of DAO in non-immunocompromised adults.
- To emphasize the need for early detection and treatment to improve patient outcomes and reduce transmission.
Main Methods:
- Case report of a 25-year-old woman with bilateral diffuse alveolar opacities.
- Initial workup focused on non-tuberculous etiologies.
- Diagnostic procedures included sputum analysis, fine needle aspiration cytology (FNAC) via percutaneous route, and Polymerase Chain Reaction (PCR) on bronchoalveolar lavage (BAL) and FNAC specimens.
Main Results:
- Sputum analysis was inconclusive for tuberculous or other infections.
- Histopathology of FNAC specimen revealed chronic granulomatous disease with Mycobacterium detection.
- PCR confirmed tuberculous etiology in both BAL and FNAC samples.
Conclusions:
- Pulmonary tuberculosis should be considered in the differential diagnosis of DAO in non-immunocompromised adults, despite its infrequent presentation.
- Early diagnosis of tuberculous DAO is essential for effective treatment, avoidance of invasive procedures, and control of disease transmission.
Related Concept Videos
Chronic Obstructive Pulmonary Disease IV: Clinical Manifestations
Chronic Obstructive Pulmonary Disease II: Emphysema
Chronic Obstructive Pulmonary Disease III: Chronic Bronchitis Features
Chronic Obstructive Pulmonary Disease
Smoking is a primary risk factor for COPD, with over 80% of patients having a history of it. Patients typically experience progressive dyspnea or labored breathing, frequent coughing, and recurrent pulmonary infections. Many eventually succumb to respiratory failure, characterized by...
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...
Alveoli and Alveolar Ducts