Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Lung volumes are normal . Two discrete nodules in the right upper lobe measure up to 7 mm and are better characterized on same - day CT as infectious nodules due to mycobacterial infection . Reticular opacities in this area likely reflect bronchiolar wall thickening and mild bronchiectasis , better characterized on same - day CT . There is no focal consolidation , effusion , or pneumothorax . Mediastinal and hilar contours are normal . Heart size is normal .
    OUTPUT:
    
1 . Two discrete right upper lobe nodules are consistent with atypical mycobacterial infection , better characterized on same - day CT . 2 . Reticular opacities , predominantly within the right upper lobe , suggest bronchiolar wall thickening and mild bronchiectasis , better characterized on same - day CT .