Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: PA and lateral views of the chest provided . The left lower lobe appear somewhat heterogeneous , which could reflect early pneumonia . The heart is mildly enlarged compared to ___ . There is no pleural effusion or pulmonary edema .
    OUTPUT:
    
Mild cardiomegaly . Equivocal findings for early left lower lobe pneumonia .