Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Single portable view of the chest . The lungs are grossly clear . The left costophrenic is not well seen , likely technical or due to overlying soft tissues . Cardiomediastinal silhouette is within normal limits for technique and positioning . Bones appear osteopenic and degenerative changes at the right shoulder .
    OUTPUT:
    
No definite acute cardiopulmonary process .