Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: There is mild cardiomegaly . There is calcification of the aortic knob . Mild accentuation of the mediastinum may be exacerbated by technique and low lung volumes . Additionally , there is focal indentation on the right side of the trachea at the thoracic inlet . The hila are unremarkable . No pleural effusion or pneumothorax . Lung volumes are slightly low , but there is no focal consolidation concerning for pneumonia . Surgical clips are seen the right upper quadrant .
    OUTPUT:
    
No acute cardiopulmonary process . Focal indentation on the right side of the trachea at the thoracic inlet . This could be due to underlying thyroid enlargement and dedicated nonurgent thyroid ultrasound suggested .