[Pathophysiology of interstitial lung disease]

Area of Science:

• Pulmonology
• Radiology
• Pathology

Context:

• Chronic interstitial lung disease (ILD) is a group of disorders characterized by radiological pulmonary infiltration and histological evidence of diffuse parenchymal involvement.
• Understanding the correlations between histological and radiological findings is crucial for accurate diagnosis and disease management.

Purpose:

• To highlight the importance of integrating histological and radiological findings in diagnosing interstitial lung diseases.
• To emphasize the role of functional tests in assessing respiratory impact and treatment efficacy.
• To discuss the shift towards evidence-based criteria for evaluating treatment outcomes in ILD.

Summary:

• Interstitial lung disease (ILD) encompasses various conditions sharing radiological and histological features of pulmonary infiltration and parenchymal involvement.
• The integration of imaging (radiology) and tissue analysis (histology) has significantly advanced the interpretation of findings and etiological diagnosis in ILD.
• Functional tests are essential for quantifying the respiratory system's impairment and monitoring treatment response, with a move towards evidence-based criteria for improved evaluation, particularly in challenging cases like idiopathic pulmonary fibrosis.

Impact:

• Improved diagnostic accuracy through combined histological and radiological interpretation.
• Enhanced understanding of disease progression and treatment effectiveness via functional testing.
• Facilitation of more objective and effective treatment evaluation in complex interstitial lung diseases.