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Pleural effusions in the atypical pneumonias
1Division of Pulmonary and Critical Care Medicine, Medical University of South Carolina, Charleston 29425.
Seminars in Respiratory Infections
|December 1, 1988
Summary
Atypical pneumonias, including bacterial, fungal, and viral types, often present with small pleural effusions. These effusions typically resolve with pneumonia treatment, serving as a diagnostic marker.
Area of Science:
- Pulmonology
- Infectious Diseases
- Thoracic Medicine
Background:
- Atypical pneumonias, caused by diverse pathogens, are frequently associated with pleural effusions.
- These effusions are often overlooked but serve as important clinical indicators.
Purpose of the Study:
- To elucidate the characteristics and diagnostic significance of pleural effusions in atypical pneumonias.
- To highlight the role of pleural effusions in guiding clinical diagnosis and management.
Main Methods:
- Review of clinical presentations and diagnostic findings in patients with atypical pneumonias and pleural effusions.
- Analysis of pleural fluid characteristics (serous exudate, mononuclear predominance, normal glucose and pH).
Main Results:
- Pleural effusions in atypical pneumonias are typically small, ipsilateral, and serous exudates.
- Pleural fluid analysis and biopsy are rarely definitive for diagnosis, except in specific fungal infections like coccidioidomycosis.
- Effusions resolve spontaneously with appropriate pneumonia treatment, without requiring pleural space intervention.
Conclusions:
- Pleural effusions are common in atypical pneumonias and act as a marker for the condition.
- Identifying pleural effusions directs clinicians toward appropriate diagnostic and therapeutic pathways.
- Management focuses on treating the underlying pneumonia, leading to spontaneous effusion resolution.