Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Single AP view of the chest provided . 4 .0 cm left upper lobe mass is unchanged from ___ . Interstitial lung markings at the lung bases , new since ___ could be early edema . Followup advised . . No pleural effusion or pneumothorax . Hilar and cardiomediastinal contours are normal .
    OUTPUT:
    
1 . No pneumothorax , pleural effusion , or evidence of significant pulmonary hemorrhage . 2 . 4 .0 cm left upper lobe mass is unchanged from CT ___ . 3 . Mild pulmonary edema is new .