Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: There has been interval placement of a right central dialysis catheter . Bilateral hilar vascular prominence is re - demonstrated with subtle nodularity in the left upper lung likely representing confluence of vasculature though a true nodule difficult to exclude . There is no convincing sign of pneumonia or overt edema . Small left effusion is present with basilar atelectasis . The cardiomediastinal silhouette is unchanged .
    OUTPUT:
    
New HD catheter in place . Prominent perihilar vascular markings with subtle nodularity in the left upper lobe requiring CT on a nonemergent basis to further assess . Small left pleural effusion with basal atelectasis .