Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The cardiomediastinal silhouette appears stable . There is evidence of mild cardiomegaly with evidence of slight interval increase in the bilateral pulmonary vascular congestion . The lung volumes are low , however , there appears to be a slight interval increase in linear bibasilar consolidations . The aorta is tortuous . There is no pneumothorax . There is a small left pleural effusion . Visualized osseous structures are otherwise unremarkable .
    OUTPUT:
    
New bibasilar linear opacities likely secondary to atelectasis ; however , an acute infectious process can not be excluded . New small left pleural effusion .