Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: A PICC line terminates at the right lower superior vena cava . The heart is probably enlarged to a mild degree . There is marked unfolding of the aorta and the arch may be dilated . Flattening of the right costophrenic sulcus suggests potentially an effusion versus pleural thickening or scarring , but the lungs appear clear . Left - sided rib deformities appear very likely chronic , with a remodeled appearance , and probably related to remote prior trauma .
    OUTPUT:
    
No evidence of acute process . Dilatation of the aorta . Blunting of the right costophrenic sulcus , possibly due to an effusion . PICC line terminating in the lower superior vena cava .