Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: There is right apical opacity , some of which has a spiculated margin . Given superior retraction of the hilum on the right this could be due to scarring although underlying lesion would also be possible . Elsewhere , the lungs are clear . The cardiomediastinal silhouette is normal . No acute osseous abnormalities .
    OUTPUT:
    
Right upper lung opacity potentially due to scarring however given lack of priors to document stability , chest CT is suggested for further evaluation on a nonurgent basis to evaluate for underlying mass .