Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Lung volumes are slightly low . Heart size remains moderately enlarged with a left ventricular predominance . The mediastinal and hilar contours are unchanged . Pulmonary vasculature is not engorged . Lungs are clear without focal consolidation , although assessment of the lung apices is somewhat obscured by the patient 's chin and neck projecting over these areas . No pleural effusion or large pneumothorax is identified . There are moderate multilevel degenerative changes in the thoracic spine .
    OUTPUT:
    
No acute cardiopulmonary abnormality .