Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Single portable view of the chest . The lungs are essentially clear , noting that the retrocardiac region is not well assessed , likely due to overlying soft tissues / technique . The cardiomediastinal silhouette is stable . Atherosclerotic calcifications again noted at the arch .
    OUTPUT:
    
No definite acute cardiopulmonary process .