50,non smoker, non diabetic , asthmatic male on inhaled steroids 3 months, cough expectoration

wheeze, obbstruction on spirometry , on inhaled budesonide 1000 mcg /day.

SputumAFB- 3 negative , Describe findings? write possible DD.

Bilateral discrete nodular densities with two tiny cavities, Likely to be infective ,DD- tubercular,fungal

(Incidentally the lavage in this case confirmed Nocardiosis)