Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: AP single view of the chest has been obtained with patient in semi-upright position . Comparison is made with the next preceding similar study obtained 10 hours earlier during the same day . The portable AP single image of the chest covers well the lung bases but does not include the ultimate tip of the apices . Comparison with the next previous chest examination does not demonstrate any significant interval change . As before , there is evidence of bilateral central pulmonary edema , but the pulmonary vasculature is not congested and no evidence of pleural effusion is present in the lateral pleural sinuses . Although the apical area is not covered completely , there is no suggestion of any new apical pneumothorax .
    OUTPUT:
    
Stable chest findings .