Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The lungs are hypoinflated with crowding of vasculature and subtle left lower lobe opacity . No pleural effusion or pneumothorax . Heart is top - normal in size , likely accentuated due to low lung volumes . Mediastinal contour and hila are unremarkable .
    OUTPUT:
    
Findings worrisome for early left lower lobe pneumonia with small left pleural effusion .