Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The cardiac , mediastinal and hilar contours appear unchanged . The lungs appear clear . There are no pleural effusions or pneumothorax . Sequela of prior rib injuries appear unchanged . The bones are probably demineralized to some degree . Severe degenerative changes are noted along the right shoulder . The left humeral head also shows upward subluxation . High - riding humeral heads may indicate underlying rotator cuff pathology . Moderate spinal curvature is also unchanged .
    OUTPUT:
    
No evidence of acute disease .