Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Lungs are fully expanded . Multiple new bronchocentric nodular opacities are scattered throughout the left lung . The right lung is clear . No pleural abnormality . Heart size is normal . Cardiomediastinal and hilar silhouettes are unremarkable .
    OUTPUT:
    
Left lung nodular opacities could be due to acute atypical or viral pneumonia . However , given a duration of 6 weeks , pulmonary tuberculosis is a consideration .