Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Mild left lower lobe atelectasis is noted and low lung volumes . There is no evidence of lobar consolidation , pleural effusion , pneumothorax , or frank pulmonary edema . The cardiomediastinal silhouette is within normal limits . No acute osseous abnormalities are detected .
    OUTPUT:
    
No evidence of acute cardiopulmonary process .