Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: There has been interval placement of a right - sided PICC , this terminates in the right atrium and could be withdrawn 3 - 4 cm for better seating within the SVC . Lung volumes are low but improved compared to the prior study . Apparent widening of the mediastinum is less prominent than on the prior study . No pneumothorax , pleural effusion or consolidation seen . Moderate cardiomegaly , similar in degree compared to multiple prior studies .
    OUTPUT:
    
Moderate cardiomegaly , unchanged compared to the prior study . Slight improvement in the degree of mediastinal widening . The right - sided PICC terminates in the right atrium and could be withdrawn 3 - 4 cm for better seating within the SVC .