Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Portable semi-upright radiograph of the chest demonstrates low lung volumes which results in bronchovascular crowding . There is a moderate - sized partially loculated right pleural effusion with adjacent atelectasis . A chest tube projects over the right hemi thorax . Median sternotomy wires are in place . The right - sided Port - A - Cath is in unchanged position . There is no pneumothorax .
    OUTPUT:
    
Moderate - sized partially loculated right pleural effusion with adjacent atelectasis , not significantly changed from the prior radiograph .