Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: PA and lateral views of the chest were provided . There is a vague opacity projecting just above the right hemidiaphragm in the right lung base on the frontal projection , which could represent an abnormality in the breast or chest wall , though the possibility of a nodule in the right lower lung is not excluded . Otherwise , the lungs appear clear . Cardiomediastinal silhouette appears within normal limits . The imaged bony structures are intact with degenerative changes noted at the right shoulder .
    OUTPUT:
    
Subtle nodular opacity projecting over the right lung base on the frontal projection , may represent overlapping structures in the body wall , though true nodule not excluded . Consider dedicated chest CT to further assess .