Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Sternotomy wires are unchanged . A left - sided PICC tip terminates at the lower SVC . The course of the PICC projects over the aortic knob and has a slightly atypical course as it extends more centrally . Otherwise , the heart size is normal . The lungs are clear of consolidation . The previously described pulmonary edema has improved . There is no large pleural effusion or pneumothorax detected .
    OUTPUT:
    
1 . No evidence of pneumothorax and improving pulmonary edema . 2 . Left PICC course likely within normal limits ; if clinical concern for an intra-arterial line exists , correlate with pulsatility of flow or an ABG .