Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Lung volumes are low . Heart size remains mildly enlarged but not substantially changed in the interval . Slight widening of the superior mediastinum is felt to be due to low lung volumes . Aortic knob remains distinct . Patient is status post bilateral mastectomies and breast implants . New hazy opacifications are seen within the left lung with sparing of the left apex and left costophrenic angle , as well as the right mid and lower lung fields . It is unclear if these reflect true parenchymal abnormalities or the presence of the breast implants . Pulmonary vasculature does not appear engorged . No pneumothorax or pleural effusion is identified .
    OUTPUT:
    
Hazy opacities projecting within both lungs may be due to overlying breast implants and low lung volumes . Repeat PA and lateral views of the chest when the patient is able to is recommended for further assessment of the lung parenchyma .