Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Dense consolidations are noted in the retrocardiac left lung base , as well as ground - glass opacities within the left upper lung . A mechanical heart valve is present , along with mild cardiomegaly and aortic calcifications . Calcific densities also project over the cardiac silhouette , location of which is uncertain . A left pleural effusion is likely . The right hemi thorax is grossly clear . There is no pneumothorax .
    OUTPUT:
    
Multifocal left lung consolidations and likely effusion , compatible with aspiration or multifocal pneumonia .