Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Cardiac silhouette is upper limits of normal in size . Aorta is tortuous . Bilateral diffuse interstitial abnormalities are present , characterized by coarse reticular opacities and minimal adjacent ground - glass opacities . These findings are most prominent in the lung periphery and have a slightly basilar predominance as well . Although similar coarse reticular interstitial opacities have been present since outside chest x-ray of ___ , on the lateral view , confluent increased opacity overlying the lower thoracic spine is new since the most recent lateral chest x-ray of ___ . No acute skeletal abnormalities .
    OUTPUT:
    
1 . Confluent opacity overlying lower thoracic spine on lateral view , concerning for basilar pneumonia . 2 . Widespread coarse reticular opacities favor chronic lung disease , but superimposed atypical / interstitial pneumonia is also possible .