Pneumothorax secondary to pulmonary alveolar microlithiasis

Oliver P Devine1, Andrew C Harborne2

  • 1School of Medicine University College London Gower Street London WC1E 6BT UK.

Clinical Case Reports
|April 12, 2018
PubMed

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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