Thoracic involvement in systemic primary vasculitis: radiological patterns and follow-up.

Area of Science:

• Pulmonary Medicine
• Radiology
• Immunology

Background:

• Systemic primary vasculitides are rare idiopathic diseases characterized by inflammatory injury to vessel walls.
• Pulmonary involvement is a frequent manifestation of these systemic diseases.
• Chest computed tomography (CT) is the primary imaging modality for assessing pulmonary involvement.

Purpose of the Study:

• To detail the common and uncommon CT findings associated with pulmonary vasculitis.
• To illustrate the evolution of these CT features during therapy.
• To assist in differentiating pulmonary vasculitis from other inflammatory, infectious, or neoplastic lung diseases.

Main Methods:

• Review of chest CT imaging in patients diagnosed with systemic primary vasculitides.
• Correlation of imaging findings with clinical data and therapeutic response.
• Analysis of typical and atypical radiological patterns of pulmonary, vascular, and airway abnormalities.

Main Results:

• Pulmonary vasculitis presents with a broad spectrum of CT abnormalities affecting lung parenchyma, vasculature, and airways.
• Specific CT features can indicate disease activity and response to treatment.
• Distinguishing vasculitis from other lung pathologies requires careful integration of imaging and clinical information.

Conclusions:

• Chest CT is essential for diagnosing and monitoring pulmonary vasculitis, revealing diverse abnormalities.
• Understanding typical and atypical CT features is crucial for accurate diagnosis and differential diagnosis.
• Close collaboration between radiologists and clinicians is vital for effective management of pulmonary vasculitis.