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Imaging Features of Systemic Sclerosis-Associated Interstitial Lung Disease

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[CT imaging features of bronchiolitis].

C Beigelman-Aubry¹, D Touitou, R Mahjoub

¹Service de Radiologie Générale, Hôpital de la Pitié Salpêtrière, 83 boulevard de l'Hôpital, 75651 Paris cedex 13, France. catherine.beigelman@psl.aphp.fr

Journal De Radiologie

|December 3, 2009

Summary

This summary is machine-generated.

Bronchiolitis, a lung inflammation, presents diverse CT findings like micronodules and air trapping. Understanding patient history is key for diagnosing inflammatory or fibrosing bronchiolitis types.

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Area of Science:

Pulmonary Medicine
Radiology
Pathology

Background:

Bronchiolitis encompasses various clinical scenarios requiring a thorough patient history, including smoking, infections, toxic exposures, immunodeficiency, chronic inflammatory disorders, or transplantation.
Accurate diagnosis relies on identifying specific clinical risk factors and characteristic imaging findings.

Observation:

Computed tomography (CT) reveals centrilobular micronodules with variable borders and density, mosaic attenuation, and expiratory air trapping.
The 'tree-in-bud' pattern on CT suggests inflammatory or infectious bronchiolitis.
Associated findings like bronchiectasis and bronchiolectasis should be noted.

Findings:

Imaging-pathologic correlations differentiate inflammatory bronchiolitis (infectious, hypersensitivity pneumonitis, respiratory, follicular, diffuse panbronchiolitis) from fibrosing bronchiolitis (constrictive, post-infectious, toxic fume exposure, transplant-related).

Implications:

This comprehensive approach aids in precise diagnosis and management of diverse bronchiolitis subtypes.
Understanding CT findings in conjunction with clinical history improves diagnostic accuracy for lung diseases.
Correlating imaging with pathology is crucial for classifying and treating bronchiolitis effectively.