Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Frontal and lateral radiographs of the chest demonstrate well expanded clear lungs . The cardiomediastinal and hilar contours are on remarkable . There is no pneumothorax , pleural effusion , or consolidation . On the lateral view note is made of increased density in the anterior mediastinum , which is similar in appearance ___ . The stability over this period of time favors a benign etiology such is mediastinal lipomatosis or thymic cyst .
    OUTPUT:
    
1 . No acute cardiopulmonary process . 2 . On the lateral view note is made of increased density in the anterior mediastinum , which is similar in appearance ___ . The stability over this period of time favors a benign etiology such is mediastinal lipomatosis or thymic cyst . If clinically indicated , non-urgent CT of the chest with contrast could be performed for further evaluation .