Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: 2 - cm triangular basal opacity is only seen on lateral view overlying lower thoracic spine , of indeterminate significance and may represent artifact or chest wall superimposed density . The rest of the exam is unremarkable . Mediastinal and cardiac contours are normal . There is no pleural effusion or pneumothorax .
    OUTPUT:
    
Triangular opacity overlying lower thoracic spine is only visible on the lateral view and is of indeterminate significance . This could be further assessed with lateral oblique views or a CT scan if preferred . This has been submitted to the radiology dashboard for direct notification of referring physician .