Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Heart size is normal . The mediastinal and hilar contours are normal . The pulmonary vasculature is normal . Lungs are remarkable for a focal linearly oriented nodular opacity in the anterior segment of the right upper lobe , new from the prior chest radiograph and similar to the recent CT of 4 days earlier . Lungs are otherwise clear except for linear bibasilar areas of scar or atelectasis , also demonstrated on the recent CT scan . . No pleural effusion or pneumothorax is seen . There are no acute osseous abnormalities .
    OUTPUT:
    
Linearly oriented right upper lobe nodular opacity is similar to recent CT of 4 days earlier but new from ___ chest radiograph .