Mosavir Ansarie.
A national guideline and ILD PAK Registry Report: Recent landmarks in the understanding of interstitial lung diseases in Pakistan.
J Pak Med Assoc Jan ;66(9):1050-3.

The Interstitial lung diseases (ILDs) are a heterogeneous group of pulmonary disorders, classified together because of similar clinical, radiological and pathological features. 1 These are often described as diffuse parenchymal lung diseases (DPLD) because the disease process is not limited to the interstitium and may involve alveolar spaces, acini and the bronchioles. 2 Some of the ILDs could be related to particular exposure histories as in the case of Hypersensitivity Pneumonitis (HP) or associated with systemic diseases like Connective tissue disorders (CTD) while a large number of them may not have a proven etiology like Sarcoidosis. The more common and important idiopathic interstitial pneumonias (IIPs) are the Idiopathic Pulmonary Fibrosis (IPF) and Non-specific Interstitial Pneumonitis (NSIP). IPF is the commonest and most dreadful of these with a relentless progression and a prognosis worst than most cancers.

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