ILD showing obstructive pattern can be seen in?: (A) Idiopathic pulmonary fibrosis, (B) Non-specific interstitial pneumonitis, (C) Pulmonary lymphangioleiomyomatosis, (D) Cryptogenic organising pneumonia
Answer is C. Mostly ILD's have Restrictive pattern except few with obstructive pattern are:- 1) Sarcoidosis 2) Hypersensitivity pneumonitis 3) Pulmonary lymphangioleiomyomatosis