Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The heart is at the upper limits of normal size most likely . The mediastinal and hilar contours appear within normal limits . There is a consolidation of the left lower lung with mild volume loss and possibly an associated pleural effusion . The appearance is most suggestive of lobar pneumonia . Elsewhere , the lungs remain clear and unchanged . There is no pneumothorax . Mild rightward convex curvature is noted along the lower thoracic spine .
    OUTPUT:
    
Findings suggesting lobar pneumonia involving the left lower lobe with a possible pleural effusion .