Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: When compared to previous exam , there has been no significant interval change . Tracheostomy tube is again seen . Bibasilar opacities are suggestive of bilateral effusions , larger on the left than on the right . Prior left PICC is no longer visualized . Cardiomediastinal silhouette is difficult to assess given bibasilar opacities . Dense atherosclerotic calcification noted in the tortuous thoracic aorta . PEG tube identified over the upper abdomen .
    OUTPUT:
    
No significant interval change of bilateral pleural effusions . These limit evaluation for underlying parenchymal opacity / possibility of infection .