Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Right - sided Port - A - Cath tip terminates in the proximal right atrium . Heart size is mildly enlarged . The aorta remains tortuous and diffusely calcified . Hilar contours are similar . Previously noted pulmonary edema has substantially improved with only minimal pulmonary vascular congestion remaining . Calcified granulomas are re - demonstrated within the right upper lobe . Linear opacities in the lung bases likely reflect chronic interstitial abnormality . No pleural effusion , focal consolidation or pneumothorax is present . There are moderate multilevel degenerative changes seen in the thoracic spine . No acute osseous abnormality is identified .
    OUTPUT:
    
Interval improvement in pulmonary edema with only minimal residual mild pulmonary vascular congestion . Mild chronic interstitial abnormality at the lung bases .