Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: No focal consolidation , pleural effusion , or evidence of pneumothorax is seen . There is a 1 cm rounded opacity projecting over the left lower hemithorax , between the posterior left ___ and 10th ribs , stable since at least ___ , and likely represents nipple shadow . Similar finding is seen at the same level on the right . Cardiac and mediastinal silhouettes are unremarkable .
    OUTPUT:
    
No acute cardiopulmonary process .