Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: A linear metallic density projects over the upper trachea on a single image . The lungs are symmetrically well expanded and well aerated . No focal consolidation concerning for pneumonia , pleural effusion , or pneumothorax is detected . The cardiac silhouette is normal in size . The right mediastinal border is prominent with soft tissue density along the right paratracheal stripe . The remainder of the mediastinal contours are within normal limits and unchanged from ___ . The visualized upper abdomen is unremarkable .
    OUTPUT:
    
1 . No pneumothorax . 2 . Prominent soft tissue density along the right paratracheal stripe is incompletely evaluated and could be due to rotation . Recommend non-emergent CT chest for further evaluation . 3 . Metallic density projecting over the upper trachea may lie external to the patient . Clinical correlation is recommended .