<prompt> Most common pulmonary manifestation in AIDSTBPneumoniaBronchiectasisMycobacterial avium intracellular  <response>: Ans. is b i.e., Pneumonia Respiratory complications in AIDS Respiratory diseases in AIDS include A Acute bronchitis and sinusitis They are caused by S. pneumoniae and H influenzae and are very common. B Pulmonary diseases Pulmonary diseases are :- 1. Pneumonia Most common pulmonary manifestation is pneumonia : Bacterial pneumonia : It is caused most commonly by S pneumoniae and pneumococcal infection is the earliest serious infection in AIDS. H influenzae is also a common cause. P canna pneumonia : It is the most common cause of pneumonia in AIDS. Risk is greater when CD4 count less than 200ml. 2. Tuberculosis In developing countries like India, most impoant pathogen is M tuberculosis. Other common pathogen causing TB is MAC atypical mycobacteria. 3. Other pulmonary diseases These are fungal infections cryptococcus, histoplasma, aspergillus, neopasms Kaposi sarcoma, lymphoma and idiopathic interstitial pneumonia. 