Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The cardiomediastinal silhouette is within normal limits . Subtle asymmetry of the right hemi thorax compared to the left on the frontal radiograph may be due to a technical artifact due to lack of patient centering . No corresponding opacity is observed on the lateral radiograph appear No acute osseous abnormalities are detected .
    OUTPUT:
    
No definite pneumonia . Subtle asymmetry in density of the 2 lungs on the frontal radiograph is likely technical in nature , but a repeat frontal radiograph may be considered to exclude early infection in the right lung if warranted clinically .