Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Lateral in frontal chest radiographs demonstrate mild cardiomegaly unchanged since ___ . There is a mildly dilated descending aorta . Hilar contour are otherwise unremarkable . The lungs are clear bilaterally without pulmonary edema . There is no pneumothorax or pleural effusion . The visualized osseous structures are unremarkable .
    OUTPUT:
    
No findings to explain right lateral chest pain .