Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: PA and lateral chest views were obtained with patient in upright position . Comparison is made with the next preceding similar studies ___ ___ and the most immediate chest examination obtained 14 hours earlier during the same day . The on next previous study identified acute interstitial and pulmonary edema pattern has markedly improved . Moderate cardiac enlargement persists . On the other hand , the amount of pleural effusion accumulating in the lateral and posterior pleural sinuses has increased slightly . No new pulmonary parenchymal infiltrates can be identified . When comparison is extended to the chest examination ___ ___ , mild cardiac enlargement persists . The on previous examination identified parenchymal density in the periphery of the left upper lobe lingula abutting the cardiac contour is again seen and suggests a possibility of an inflammatory process in this area . Thus , further followup is recommended .
    OUTPUT:
    
Improvement of acute pulmonary central and interstitial edema occurring within the last day . Development of slightly more prominent bilateral pleural effusions . Peripheral density in left lingula still present , deserving further followup .