Hyperanslucency of lung unilaterally is seen on all except :: (A) Pneumothorax, (B) Resection of mammary gland, (C) Pulm a. obstruction, (D) Pneumonectomy
Answer is D. 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.