Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: There is left basilar opacity with obscuration of the left hemidiaphragm . Meniscus sign on the lateral view suggests that there is a pleural effusion with overlying atelectasis , underlying consolidation may also be present . No focal consolidation is seen on the right . No large right pleural effusion . There is mild pulmonary vascular congestion and slight prominence of the vascular hila . The cardiac silhouette is top - normal . The aorta is calcified .
    OUTPUT:
    
Left pleural effusion with overlying atelectasis , underlying left basilar consolidation not excluded . Mild pulmonary vascular congestion .