Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: No focal consolidation , pleural effusion , pneumothorax , or pulmonary edema is detected . Heart and mediastinal contours are within normal limits . 1 .7 cm ill - defined density projecting over the right upper lung field may represent right 1st rib costochondral calcification , but small focus of infection , contusion or nodule can not be excluded .
    OUTPUT:
    
1 .7 cm opacity projecting over the right upper lung field , which could represent costochondral calcification , focus of infection , contusion or lung nodule . Apical lordotic view may be helpful . Alternatively , non-urgent chest CT could be performed . Findings were discussed with ___ by ___ by telephone at 14 : 20 on ___ at the time of discovery of these findings .