Asthma

Updated Global Inisiative for Asthma Management 2009
Definition
Asthma is a chronic inflammatory disorder of the  airways is associated with airway hyperresponsiveness recurrent episodes of wheezing, breathlessness, chest tightness, coughing

Interstitial lung disease

Definition
Diffuse parenchymal lung disease (DPLD),refers to a group of lung diseases affecting the interstitium (the tissue and space around the air sacs of the lungs).  It concerns alveolarepithelium, pulmonary capillary endothelium,basement membrane, perivascular andperilymphatic tissues.

Pulmonary Embolism

Definition
Pulmonary embolism (PE) is a blockage of the main artery of the lung or one of its branches by a substance that has travelled from elsewhere in the body through the bloodstream (embolism).

Tuberculosis

Description
Tuberculosis, TB (short for tubercles bacillus) is a common and in some cases deadly infectious disease caused by various strains of mycobacteria, usually Mycobacterium tuberculosis in humans. Tuberculosis usually attacks the lungs but can also affect other parts of the body. It is commonly associated with HIV.

Chronic Obstructive Pulmonary Disease (COPD)

Definitions
Chronic obstructive pulmonary disease (COPD) encompasses several diffuse pulmonary diseases, including chronic bronchitis, asthma, cystic fibrosis, bronchiectasis, and emphysema:The result is irreversible airflow obstruction.

Cystic Fibrosis

Definitions
Cystic fibrosis (CF) is an autosomal-recessive genetic condition that most prominently affects the lungs and pancreas.The intestinal tract, liver, endocrine system, reproductive organs, and skin can all be involved.