Lower lobe predominance mnemonic

BADAS

* B: Bronchiectasis
* A: Aspiration pneumonia
* D: Drugs, Desquamative interstitial pneumonia
* A: Asbestosis
* S: Scleroderma and other Collagen vascular diseases

C.I.A.

* C: Collagen vascular disease
* I: Idiopathic pulmonary fibrosis
* A: Asbestosis

Scleroderma

diopathic pulmonary fibrosis