Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: A portable AP radiograph of the chest demonstrates resolution of the small right - sided pneumothorax . There is a small layering right - sided pleural effusion which is similar in size to the prior study . The chest tube is unchanged . A small amount of subcutaneous emphysema on the right is unchanged . There is no left - sided effusion or pneumothorax . Severe cardiomegaly is unchanged . The hilar and mediastinal contours are normal . There is very mild interstitial pulmonary edema which is slightly decreased from yesterday .
    OUTPUT:
    
1 . Small right pneumothorax has resolved . 2 . Small right pleural effusion is stable . 3 . Mild interstitial pulmonary edema has minimally improved .