Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Compared with prior exam , there is satisfactory positioning of the patient in this PA and lateral views . There has been significant interval improvement of previously noted pulmonary edema . Lung volumes continue to be low , with bibasilar streaky opacities , more pronounced in the left , which might represent atelectasis with or without superimposed pneumonia . Although widening of the mediastinum is not significantly changed by plain film from ___ , subsequent CT demonstrated new extensive paratracheal lymphadenopahty . Blunting of the right cardiophrenic angle is stable since at least ___ , suggesting scarring . Tracheal deviation is not significantly changed from prior and is secondary to goiter , partially imaged in prior CT chest from ___ . Moderate - to - severe cardiomegaly is unchanged . A moderate hiatal hernia is not significantly changed in size from prior .
    OUTPUT:
    
1 . Significant interval improvement of pulmonary edema . 2 . Although widening of the mediastinum is not significantly changed by plain film from ___ , subsequent CT demonstrated new extensive paratracheal lymphadenopahty . 3 . Chronic blunting of the right cardiophrenic angle , likely scarring . 4 . Moderate hiatal hernia , unchanged .