1.A 25 years old male presents with history of cough with productive mucoid sputum for the last three months. The sputum is foul smelling, copious and it increases on lying to the left side. On examination patient is tachypneic and has coarse leathery crepitation’s in the right inter scapular and infra scapular regions; clubbing present. Answer the following What is your probable diagnosis. What are the causes for this condition How will you confirm the diagnosis. How will you treat this condition