Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: PA and lateral views of the chest . The lungs are clear without consolidation , effusion , or pulmonary vascular congestion . The cardiac silhouette is mildly enlarged . The thoracic aorta is tortuous . No acute osseous abnormality detected .
    OUTPUT:
    
Cardiomegaly without acute cardiopulmonary process .