Causes and Diagnoses

Causes and Diagnoses of Cystic Lung Disease

Causes

Cystic lung disease can result from a wide range of underlying conditions, including:

• Genetic disorders (inherited or spontaneous mutations)
• Congenital lung abnormalities (present at birth)
• Autoimmune diseases
• Lung infections
• Smoking-related lung injury
• Cancers involving the lung
• Interstitial lung diseases (ILDs)

In some cases, the exact cause may remain unclear.

Diagnosis

Diagnosis typically involves a combination of imaging and specialized testing:

• High-resolution CT (HRCT) – key tool to identify lung cysts
• Chest X-ray – may show abnormalities
• Pulmonary function tests – assess lung capacity and function
• Blood tests – evaluate for underlying conditions
• Genetic testing – for inherited syndromes
• Lung biopsy – in select cases to confirm diagnosis

Accurate diagnosis is essential, as treatment depends on the underlying cause.