Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Compared with prior radiographs on ___ , there is minimal improvement in severe widespread heterogeneous infiltrate in both lungs . There is slight improvement in aeration in the upper lungs . There is no pneumothorax . Moderate cardiomegaly , unchanged .
    OUTPUT:
    
Minimal improvement in severe widespread heterogeneous infiltrate in both lungs .