Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: AP single view of the chest has been obtained with patient in sitting semi-upright position . Analysis is performed in direct comparison with the next preceding five portable chest examinations from ___ through ___ . There is further regression of the previously described bilateral extensive pulmonary parenchymal densities . Specifically , very advanced density in the right upper lobe area has undergone marked regression . Widespread poorly delineated patchy infiltrates , however , remain . Noticeable is that the lateral pleural sinuses are free and that there is no evidence of pneumothorax in the apical area . Previously described right internal jugular approach wide - bore hemodialysis line remains in unchanged position . Heart size remains normal . There is no evidence of typical pulmonary vascular congestion .
    OUTPUT:
    
Further regression of previously described multifocal parenchymal infiltrates . No evidence of any new process .