Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Dual lead left - sided AICD is stable in position . The cardiac silhouette remains enlarged . Mediastinal contours are stable . Mild to moderate pulmonary edema is grossly stable . No pleural effusion is seen . No pneumothorax .
    OUTPUT:
    
Persistent mild to moderate pulmonary edema and enlarged cardiac silhouette .