Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Peribronchial thickening is detected throughout the bilateral lower lungs , which may be due to atypical --___ , mycoplasma , chlamydia --___ . No large focal consolidation , pleural effusion , or pneumothorax . Cardiomediastinal and hilar silhouettes and pleural surfaces are normal .
    OUTPUT:
    
Peribronchial thickening in the bilateral lower lungs , with ill - defined basilar opacities , may be seen in atypical pneumonia .