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Idiopathic interstitial lung disease: anatomoradiologic pathogenesis

¹Servizio di Anatomia Patologica, Casa di Cura S. Anna, Brescia, Italy.

Rays

|January 1, 1997

Summary

Interstitial lung disease (ILD) involves over 200 causes and affects lung airways. High-resolution computed tomography (HRCT) aids in diagnosing ILD, differentiating reversible from irreversible disease.

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Area of Science:

Pulmonology
Radiology
Pathology

Background:

Interstitial lung disease (ILD) is a complex group of over 200 disorders affecting lung alveoli and bronchioles.
Causative factors range widely, including infections, autoimmune diseases, and environmental exposures like inorganic pneumoconiosis.

Purpose of the Study:

To correlate clinical, histological, and radiological findings in patients with various interstitial lung diseases.
To evaluate the diagnostic utility of high-resolution computed tomography (HRCT) in assessing ILD activity and progression.

Main Methods:

Analysis of open lung and transbronchial biopsies from 50 patients with diagnosed ILD.
Correlation of histological findings with conventional chest radiography (30 patients) and HRCT (31 patients).
Specific focus on HRCT-histological correlation in 31 patients with idiopathic interstitial fibrosis (IIF).

Main Results:

HRCT is superior to conventional radiology in detecting and characterizing parenchymal alterations in ILD.
HRCT patterns (ground glass, linear, nodular, honeycombing) correlate with disease activity and fibrosis.
HRCT-assisted assessment of active lesions is crucial for guiding treatment decisions.

Conclusions:

HRCT plays a vital role in differentiating reversible (inflammatory) from irreversible (fibrotic) lung lesions.
Multidisciplinary approach and HRCT-assisted histological assessment are essential for accurate diagnosis and management of ILD.
Preoperative HRCT-assisted biopsy, especially targeting ground glass opacities, improves diagnostic accuracy in IIF.

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