Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Frontal lateral views of the chest provided . There is no focal consolidation , effusion , or pneumothorax . Heart size is slightly enlarged , unchanged from ___ . Imaged osseous structures are intact . No free air below the right hemidiaphragm is seen .
    OUTPUT:
    
1 . No acute intrathoracic abnormality . 2 . Mild cardiomegaly .