Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Frontal on lateral chest radiographs demonstrate a normal cardiomediastinal silhouette and well - aerated lungs which are clear without pleural effusion or pneumothorax . There is no bony abnormality .
    OUTPUT:
    
Normal chest radiograph without bony abnormality . A preliminary read was provided , upon request , by Dr . ___ to Dr . ___ at ___ on ___ .