Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Although on the frontal view the lungs are grossly clear , on the lateral view there is a spiculated opacity projecting in the retro sternal clear space . There is no effusion or edema . Nodular opacities over the lung bases on the frontal view are compatible with nipple shadows . The cardiomediastinal silhouette is within normal limits . No acute osseous abnormalities .
    OUTPUT:
    
Spiculated opacity in the retrosternal clear space on the lateral view which is new from ___ . Infection is entirely possible given clinical setting and rapid interval development . Followup will be necessary .