Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: PA and lateral views of the chest provided . Opacity at the left lung apex is compatible with known mass . Scattered mild linear atelectasis noted . Additional areas of nodularity seen on recent PET - CT not clearly seen on this exam . No large effusions are seen . The heart is mildly enlarged . No signs of edema . Bony structures appear grossly intact .
    OUTPUT:
    
Mild cardiomegaly without evidence of pulmonary edema . Left apical opacity consistent with known malignancy .