Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: A low large right pleural effusion extends to the level of the right hilum and is only slightly smaller than on the prior radiographic study of ___ . There remains adjacent atelectasis of the the right middle and right lower lobes as well as a portion of the anterior segment of the right upper lobe . The configuration of the effusions suggests a loculated component anteriorly , similar to the prior radiograph . Cardiomediastinal contours are stable allowing for of duration of the right heart border . The left lung is clear except for linear atelectasis at the left base . There is no significant left pleural effusion . Although a large effusion was present on ___ radiographs , only a small pleural effusion was evident on interval CT abdomen of ___
    OUTPUT:
    
Large right pleural effusion , substantially increased since abdominal CT of ___ .