Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Hazy opacities over the lung bases are likely due to gynecomastia . For focal nodular density of the left lung base may be a nipple shadow however repeat with nipple markers suggested to confirm . Small left pleural effusion is noted . The lungs are otherwise clear . Cardiomediastinal silhouette is within normal limits . No acute osseous abnormalities .
    OUTPUT:
    
Small left pleural effusion . Nodular opacity projecting over the left lung base , likely nipple shadow however repeat with nipple markers suggested to confirm .