Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: There is a 10 mm round opacity projecting over the left lower lung , which likely represents a nipple shadow . Otherwise , the lungs are hyperinflated but clear . No focal consolidations . No pulmonary edema . Normal appearance of the cardiomediastinal silhouette . No pleural effusion . No pneumothorax . Degenerative changes are seen within the right shoulder . There is pectus excavatum .
    OUTPUT:
    
1 . Hyperinflation , but no evidence of pneumonia . 2 . 10 mm round opacity projecting over the left lower lung , likely a nipple shadow , however a repeat chest radiograph with nipple markers is recommended .