Non-Infectious Granulomatous Lung Disease: Imaging Findings with Pathologic Correlation

Area of Science:

• Pulmonology
• Pathology
• Radiology

Background:

• Non-infectious granulomatous lung diseases are a diverse group of disorders.
• Characterized by pulmonary opacities and granulomatous inflammation.
• Can present diagnostic challenges due to nonspecific imaging features.

Purpose of the Study:

• To review the pathological findings of non-infectious granulomatous lung diseases.
• To describe the radiologic and high-resolution computed tomography (HRCT) imaging features.
• To aid in narrowing the differential diagnosis and guiding management.

Main Methods:

• Pictorial review of non-infectious granulomatous lung diseases.
• Correlation of pathological findings with imaging manifestations.
• Emphasis on integrating clinical history (age, symptoms, immune status, comorbidities) with imaging.

Main Results:

• Detailed description of imaging manifestations across various non-infectious granulomatous lung diseases.
• Highlighting the importance of recognizing diverse radiologic patterns.
• Illustrating HRCT features associated with specific pathological findings.

Conclusions:

• Recognition of varied imaging features is essential for diagnosing non-infectious granulomatous lung diseases.
• Integrating imaging with clinical context is imperative for accurate diagnosis.
• This review aids clinicians and radiologists in managing these rare conditions.