Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Abnormal appearance of the bilateral lower lobes is unchanged compared to ___ , likely due to superimposed loculated pleural effusions better evaluated on CT . Loculated effusions are unchanged . Mild cardiomegaly is unchanged . No pulmonary edema . Cardiomediastinal and hilar silhouettes , though abnormal , are unchanged .
    OUTPUT:
    
No evidence of an acute cardiopulmonary abnormality .