Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: PA and lateral views of the chest . There is a linear streaky opacity in the right lower lobe . There is no pleural effusion or pneumothorax . The cardiomediastinal and hilar contours are normal .
    OUTPUT:
    
Linear , streaky opacity in the right lower lobe most likely represents focal atelectasis , but an early peribronchial infection could produce a similar appearance . Recommend short term follow up CXR to assess for resolution .