Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The heart is mildly enlarged . The aorta is tortuous and calcified to a mild degree . There is no pleural effusion or pneumothorax . There is a mildly prominent central vascular and interstitial opacification , suggesting mild pulmonary vascular congestion . In addition , projecting over the right lateral lung there is a nodular round density measuring 8 mm in diameter , but suspected to represent a nipple shadow . Moderate degenerative osteophyte formation is noted along the anterior thoracic spine , probably unchanged .
    OUTPUT:
    
Findings suggesting mild pulmonary vascular congestion . Nodular density projecting over the right mid lung , most likely a nipple shadow , but a pulmonary nodule can not be excluded . When clinically appropriate , a repeat PA view with nipple markers is suggested for confirmation .