Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The lungs are without focal consolidation , effusion , or pneumothorax . Again identified is a 1 .6 x 0 .8 cm density overlying the right hemithorax which appears stable dating back to ___ but of nonspecific etiology . The ascending aorta remains prominent and although this can be due to tortuosity , dilatation can not be excluded . No acute fractures are identified .
    OUTPUT:
    
1 . No acute cardiopulmonary process . 2 . There is stable prominence of the ascending aorta . While this may be due to tortuosity , a focal dilatation can not be excluded . As a result , a dedicated chest CT is again recommended in a non-emergent setting for further characterization . 3 . Also again identified is a 1 .6 x 0 .8 cm density overlying the right hemithorax which has remained stable . While this density may be representative of an osseous structure , a lung nodule can not be excluded . As a result , a dedicated chest CT is again recommended in a nonemergent setting for further characterization .