Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Mid and lower lung bilateral reticular opacities and bronchial wall thickening are present bilaterally . Overlying the right lateral sixth and seventh ribs are rounded radiopaque densities suggestive of granulomas or bone islands . No pneumothorax or pleural effusion is present . The cardiac borders and mediastinal contours are normal .
    OUTPUT:
    
1 . Findings most likely caused by viral or mycoplasma pneumonia in this clinical context . Follow - up chest radiograph after treatment to ensure resolution is recommended . 2 . Densities overlying the right sixth and seventh ribs are suggestive of granulomas or bone islands . Additional shallow oblique views at time of follow - up chest radiograph could differentiate osseous from pulmonary structures .