Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: PA and lateral views of the chest . A right Port - A - Cath ends in the low SVC , unchanged . Posterior spinal hardware is again noted and unchanged in position . Superficial ___ are again seen . There is blunting of the left costophrenic angle consistent with a small left pleural effusion which is slightly smaller than prior study . Left basilar atelectasis again noted .
    OUTPUT:
    
Small left pleural effusion , slightly decreased from prior .