Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The lungs are clear without focal consolidation , effusion , or pulmonary vascular congestion . Cardiac silhouette is mildly enlarged . Descending thoracic aorta is tortuous . No acute osseous abnormality .
    OUTPUT:
    
No acute cardiopulmonary process . Mild cardiomegaly .