Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Frontal and lateral chest radiographs demonstrate unremarkable cardiomediastinal and hilar contours . Small focus of increased opacification is noted in the right lower lung corresponding with summation of vessels and costochondral calcification on the concurrent chest CT . No pleural effusion or pneumothorax evident . Multilevel degenerative changes are identified with flowing anterior osteophyte formation evident .
    OUTPUT:
    
No acute intrathoracic process .