Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: There is no visualized pneumothorax based on this supine film . There is an oblong 2 cm opacity projecting over the right mid lung . Some of the density may be attributed to overlying skin fold seen is vertical densities however underlying parenchymal nodule is suspected as it was present on examination from earlier the same day . Elsewhere , the lungs are clear . The cardiomediastinal silhouette is stable . Degenerative changes noted at the shoulders bilaterally .
    OUTPUT:
    
No pneumothorax based on a supine film . Nodular right midlung opacity for which nonurgent chest CT is suggested to further evaluate .