Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Surgical clips are noted in the cervical area . There is a new large upper right mediastinal mass obliterating the right peritracheal stripe . There also appears to be increased density to the left of the trachea , which is less prominent . The trachea is patent . Heart size is normal . The hilar contours are normal . The pulmonary vasculature is normal . Lungs are clear . No pleural effusion or pneumothorax is seen . There is a C - shaped radiodensity overlying the left lower lung , which is likely in the breast . There is no evidence of splenomegaly .
    OUTPUT:
    
New large right mediastinal mass and slight asymmetry of the left upper mediastinum . Recommend CT to further evaluate .