Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: AP upright and lateral views of the chest provided . Asymmetric breast tissue , smaller on the right noted . Prominent costochondral calcification noted on the lateral view . This may account for the prominent calcification projecting over the head of the right clavicle . No convincing signs of pneumonia or edema . No large effusion or pneumothorax . The heart size is normal . The mediastinal contour is not widened . There is mild elevation / eventration of the right hemidiaphragm . Bony structures are intact .
    OUTPUT:
    
Prominent costochondral calcification , likely the cause of prominent calcification projecting over the right clavicle head . No evidence of pneumonia .