Pneumothorax secondary to pulmonary alveolar microlithiasis
Oliver P Devine1, Andrew C Harborne2
1School of Medicine University College London Gower Street London WC1E 6BT UK.
Abstract:
Pulmonary alveolar microlithiasis (PAM) is a rare impairment of pulmonary phosphate clearance that leads to gradual precipitation of intra-alveolar calcium phosphate microliths. There is often a striking difference between alarming clinical imaging and a relatively well patient. Pneumothorax in PAM often only respond to surgical intervention.
Insights
Pulmonary alveolar microlithiasis (PAM) is a rare lung disease causing calcium phosphate buildup. Patients may appear well despite severe imaging results, and pneumothorax often requires surgery.
Area of Science:
- Pulmonology
- Rare Diseases
- Medical Imaging
Background:
- Pulmonary alveolar microlithiasis (PAM) is a rare lung condition.
- Characterized by intra-alveolar calcium phosphate microlithiasis due to impaired phosphate clearance.
- Often presents with a discrepancy between imaging findings and clinical status.
Purpose of the Study:
- To summarize the key features of Pulmonary alveolar microlithiasis.
- To highlight the diagnostic and therapeutic challenges in managing PAM.
- To emphasize the prognostic implications of pneumothorax in PAM patients.
Main Methods:
- Review of existing literature on Pulmonary alveolar microlithiasis.
- Analysis of clinical imaging characteristics in PAM.
- Evaluation of treatment outcomes for complications like pneumothorax.
Main Results:
- PAM involves gradual precipitation of calcium phosphate in alveoli.
- Clinical presentation can be misleading, with severe imaging findings in asymptomatic patients.
- Pneumothorax in PAM is often refractory to non-surgical management.
Conclusions:
- Pulmonary alveolar microlithiasis is a distinct entity with unique pathophysiology.
- The disconnect between imaging and symptoms is a hallmark of PAM.
- Surgical intervention is frequently necessary for managing pneumothorax in PAM.
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