Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: PA and lateral views of the chest were provided . There is subtle opacity in the medial right and left lung base which is similar to prior and may represent crowding of bronchovascular markings though the possibility of a subtle pneumonia is difficult to exclude in the correct clinical setting . No large effusion or pneumothorax . No signs of edema . Cardiomediastinal silhouette is normal . Bony structures are intact .
    OUTPUT:
    
Prominent bronchovascular markings versus early pneumonia at the medial lung bases .