Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Small bilateral pleural effusions improved on the right and increased on the left since the most recent prior examination of ___ . Increased opacification at the left lung base may represent underlying infection . Moderate - to - severe enlargement of the cardiac silhouette is chronic and unchanged . Bilateral low lung volumes are noted with crowding of bronchovascular markings . A supraclavicular dialysis catheter ends in the right atrium . In the interim since the most recent prior examination , there has been removal of the left - sided PICC tip . Sternotomy wires are midline and intact . Patient is status post left mitral valve repair .
    OUTPUT:
    
1 . Bilateral pleural effusions , improved on the right compared to the prior examination , but worsened on the left . Increased opacification at the left lung base may represent underlying infection . 2 . Low lung volumes with crowding of bronchovascular markings and minimal increased pulmonary vascular engorgement .