Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: PA and lateral views of the chest provided . Left chest wall pacer device is again noted with leads extending into the region of the right atrium and right ventricle . There is opacity in the left lower lung which is concerning for pneumonia . Also noted is a small left pleural effusion . The right lung is clear . Cardiomegaly is mild . Mediastinal contour is unremarkable . Bony structures are intact . No free air below the right hemidiaphragm .
    OUTPUT:
    
1 . Left basal consolidation concerning for pneumonia . 2 . Small left pleural effusion . 3 . Mild cardiomegaly .