Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The cardiomediastinal and hilar contours are within normal limits . Lungs are well expanded and there are no findings suggestive of pneumonia . Increased intersitial markings are likely related to chronic changes . No pleural effusion or pneumothorax . There is a rounded focal density at the right lung base which may represent an overlying nipple shadow . Further evaluation is recommended with nipple markers .
    OUTPUT:
    
1 . No findings suggestive of pneumonia . 2 . Focal rounded density at the right lung base may represent an overlying nipple shadow . However , in the absence of prior imaging studies and for a complete evaluation , repeat examination with nipple markers is recommended .