Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Portable AP upright chest radiograph obtained . The lungs are clear without focal consolidation , effusion , pneumothorax . The heart is mildly enlarged with a left ventricular configuration . Mitral annular calcifications are seen . There is no pneumothorax or pleural effusion . No gross osseous abnormality is seen .
    OUTPUT:
    
Mild cardiomegaly , otherwise unremarkable .