Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: AP and lateral views of the chest are obtained . The previously seen opacity obscuring the left heart border is no longer present on this study . There is no evidence of focal pneumonia , pleural effusion or pulmonary edema . The cardiomediastinal silouhette is unremarkable .
    OUTPUT:
    
No acute cardiopulmonary disease .