Diffuse cystic lung diseases: Imaging spectrum and diagnostic approach using high-resolution computed tomography

Area of Science:

• Radiology
• Pulmonology
• Medical Imaging

Background:

• Lung cysts are lucent areas with thin walls, often mimicked by other lung lesions on HRCT.
• Diffuse cystic lung diseases (DCLDs) involve multiple lung cysts and require accurate diagnosis.

Purpose of the Study:

• To present a systematic algorithmic approach for diagnosing DCLDs using HRCT.
• To differentiate common and uncommon DCLDs from mimics.

Main Methods:

• Review of HRCT findings in various DCLDs and lung cyst mimics.
• Development of an algorithm based on cyst characteristics, parenchymal changes, and clinical correlation.

Main Results:

• HRCT is the primary imaging modality for DCLD diagnosis.
• Common DCLDs can often be diagnosed definitively on HRCT.
• The proposed algorithm aids in differentiating DCLDs and excluding mimics.

Conclusions:

• HRCT provides a reliable method for diagnosing and classifying DCLDs.
• An algorithmic approach enhances diagnostic accuracy for diffuse cystic lung diseases on HRCT.