Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: AP single view of the chest has been obtained with patient in supine position . Analysis is performed in direct comparison with the next preceding similar study of ___ . Cardiac enlargement and configurational changes compatible with pulmonary hypertension remain . The pulmonary congestive pattern ; however , has markedly improved and so have the previous examination 's suspected multifocal pulmonary parenchymal infiltrates . The lateral pleural sinuses remain free , so significant pleural effusion is unlikely . No pneumothorax in the apical area . The relatively rapid improvement of the previously - described pulmonary findings suggests that they were mainly related to CHF and atypical appearance of pulmonary edema . As there are some hazy parenchymal densities persisting in the right middle lung field and the left upper lobe area , further followup is recommended .
    OUTPUT:
    
Marked improvement of pulmonary congestive pattern and parenchymal densities , most likely the result of successful treatment of CHF .