Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: A right - sided Port - A - Cath is seen terminating in the low SVC . There is no evidence of pneumothorax . No pleural effusion is seen . There are relatively low lung volumes . Right perihilar infrahilar opacity is seen , infectious process is not excluded . There may be minimal interstitial edema . The cardiac and mediastinal silhouettes are unremarkable .
    OUTPUT:
    
Mild right infrahilar opacity may represent infection in the appropriate clinical setting . Possible minimal interstitial edema .