RADIOLOGY OF ILD.pptx

it describes the radiological features of interstitial lung diseases

1. RADIOLOGY OF ILD

2. NSIP pattern

3. COP Patchy consolidation with a predominantly sub-pleural and/or peribronchial distribution 2) small, ill-defined peribronchial or peribronchiolar nodules large nodules or masses 3 ) Bronchial wall thickening or dilatation in the abnormal lung regions 4) Perilobular pattern with ill-defined linear opacities that are thicker than the thicked interlobular septa and have an arcade or polygonal appearance 5) GGO or crazy paving 6) The reverse halo or Atoll sign is considered to be highly specific, although only seen in <20% of patients with COP 5 .

4. AIP GGO- B/L Air space consolidation Traction bronchiectasis >80% Lung parenchymal architectural distortion Resemblance to ARDS

5. RB-ILD GGO – upper zone Centrilobular nodules – poorly defined Smoking related changes: centrilobular emphysema, bronchial wall thickening Advanced-: fibrosis

6. DIP Extensive GGO Linear opacities, cysts Fibrotic changes <50% Smoking related changes Confused with RB-ILD

7. LIP Mid to lower zone predominance Thickening of bronchovascular bundles Interstitial thickening Pulmonary nodules GGO Thin walled cysts Mediastinal lymphadenopathy

8. Idiopathic Pleuro-parenchymal fibroelastosis Marked apical pleural thickening Architectural distortion Reticular abnormality Pneumothorax Lymphadenopathy – Mediastinal/ axillary

9. Combined pulmonary fibrosis and emphysema Centrilobular/ paraseptal emphysema – often upper zone predominant Pulmonary fibrosis –lower lobes