Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: AP portable upright view of the chest . There is a left chest wall pacer device with leads extending to the region the right atrium and right ventricle . There is left basal opacity concerning for aspiration / pneumonia . Right hemidiaphragm is mildly elevated . Hila appear minimally congested . No overt edema . No pneumothorax . Chronic left clavicular deformity is noted .
    OUTPUT:
    
1 . Left basal opacity concerning for aspiration versus pneumonia . 2 . Hilar congestion .