Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: AP portable upright view of the chest . Lung volumes are low limiting assessment . There is reticulonodular opacity in the lower lungs which in the correct clinical setting could represent an atypical pneumonia . No large effusion or pneumothorax . Cardiomediastinal silhouette appears normal . Bony structures are intact .
    OUTPUT:
    
Subtle reticulonodular opacities in lower lungs which could represent pneumonia . A dedicated PA and lateral view would be helpful to confirm .