Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Single portable view of the chest . Again seen is relative elevation of the right hemidiaphragm with blunting of the right lateral costophrenic angle , potentially due to small effusion . The lungs are clear of consolidation . Low lung volumes result in crowding of the bronchovascular markings . Cardiac silhouette appears enlarged but this is likely due to low lung volumes and portable technique and is likely unchanged from prior . Degenerative changes are seen at the left shoulder . Surgical clips in the right upper quadrant suggest prior cholecystectomy .
    OUTPUT:
    
No definite acute cardiopulmonary process . Persistent right effusion / atelectasis .