Hyperanslucency of lung unilaterally is seen on all except :
D i.e. Pneumonectomy Pulmonary agenesisQ & PneumonectomyQ are the causes of radiopaque lung with I/L mediastinal shiftQ. Pulmonary aery obstruction (i.e. Pulmonary embolism) l/t radiolucent lungQ.
Pneumothorax
Resection of mammary gland
Pulm a. obstruction
Pneumonectomy