Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: On the lateral view , middle lung opacity is seen , not well appreciated on the frontal view , but which could be due to underlying atelectasis or developing consolidation . No focal consolidation is seen elsewhere . Calcified right breast implant is noted . No pleural effusion or pneumothorax is seen . The cardiac and mediastinal silhouettes are stable and unremarkable .
    OUTPUT:
    
Subtle opacity projecting over the mid lung on the lateral view , not well appreciated on the frontal view may represent atelectasis , but developing consolidation due to pneumonia is not excluded in the appropriate clinical setting .