Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Possible subtle ground - glass opacities in the lung apices could be related to the patient 's known history of sarcoid or inhalational injury . No focal consolidation , pleural effusion , or pneumothorax is identified . The cardiac and mediastinal contours are normal . There is no free air beneath the right hemidiaphragm .
    OUTPUT:
    
Possible subtle ground - glass opacities in the lung apices , which may be related to the patient 's history of sarcoidosis or inhalational injury . Close clinical followup is recommended .