Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The cardiomediastinal shadow is unchanged . Left - sided prepectoral Port - A - Cath in situ with the tip in the distal SVC . Right perihilar opacity is slightly more dense and shows a configuration change compared to prior imaging ( it is not known of how much the decreased lung volumes contribute to this finding ) . Interval increase in the right basilar opacity which may reflect atelectasis or consolidation . Small associated pleural effusion . Left basal atelectasis with small effusion unchanged . No pneumothorax .
    OUTPUT:
    
Position of the Port - A - Cath is unchanged with its tip in the distal SVC . Interval increase in the right perihilar and basal opacity which is nonspecific and it is not known how much the low lung volumes contribute to this finding .