Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Portable AP semi-erect chest radiograph ___ at 07 :44 is submitted .
    OUTPUT:
    
Interval improvement in aeration and resolving but persistent mild interstitial and pulmonary edema . The heart remains stably enlarged . Right subclavian PICC line and reportedly externalized VP shunt unchanged in position . Multiple surgical clips in the right axilla consistent with prior lymph node dissection . No obvious pneumothorax .