Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The heart size is normal . The hilar and mediastinal contours are normal . There appears to be consolidation along the left lower lobe with obscuration of the left cardiophrenic angle as well as opacification of the posterior lung base . There is no pneumothorax . There is a small left pleural effusion , as well as mild thickening of a major fissure . The visualized osseous structures are unremarkable .
    OUTPUT:
    
1 . There appears to be a focal consolidation along the left lower lobe with obscuration of the left cardiophrenic angle . This could be secondary to a fat pad or atelectasis , however an acute infectious process can not be ruled out on this study . 2 . Small left pleural effusion .