Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: 1 .6 cm rounded opacity projecting over the lateral left lung base may represent nipple shadow . Recommend repeat with nipple markers for confirmation . The remainder of the lung fields are clear . No pleural effusion or pneumothorax is seen . The cardiac and mediastinal silhouettes are stable . A left - sided PICC terminates in the mid to low SVC .
    OUTPUT:
    
1 .6 cm rounded opacity projecting over the lateral left lung base may represent nipple shadow . Recommend repeat chest radiograph with nipple markers for confirmation .