Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The heart is normal in size . The mediastinal and hilar contours appear within normal limits . Upper zone pulmonary vascularity is slightly prominent and indistinct but without frank pulmonary edema . There is no pleural effusion or pneumothorax . There is mild elevation of the right hemidiaphragm , but less pronounced than before with interval resolution of right basilar opacification . There is no pleural effusion or pneumothorax . Osteophytes are similar along the lower thoracic spine .
    OUTPUT:
    
Findings suggestive of pulmonary venous hypertension or slight congestion .