Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Lung volumes are slightly improved over the prior exam , no definite consolidation or edema is noted . Again seen is an ill - defined density which projects at the intersection of the anterior right third and posterior right seventh rib . This remains of unclear etiology but is reassuring given that it again is situated over osseous structures . The aorta remains markedly tortuous . The cardiac silhouette is enlarged even accounting for patient and technical factors . Both findings are stable . No definite effusion or pneumothorax is seen . Degenerative changes are noted throughout the thoracic spine and in the right shoulder .
    OUTPUT:
    
No acute pulmonary process . Hypertensive cardiomediastinal configuration is again noted . The density projecting over the lateral right hemithorax tracts with osseous structures and most likely is osseous in etiology although pulmonary nodules not entirely excluded . Consider nonurgent workup with oblique and lordotic views versus CT .