Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Single frontal view of the chest . The catheter of a right chest wall port terminates in the lower SVC . The heart size and cardiomediastinal contours are stable . Lung volumes are low , exaggerating bronchovascular markings and hilar crowding . No specific evidence of pulmonary edema . Right base linear opacity is consistent with atelectasis . No lobar consolidation , pleural effusion , or pneumothorax .
    OUTPUT:
    
Low lung volumes with right base atelectasis . No evidence of pulmonary edema .