Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Cardiac size is unchanged . There are multilobar opacities , mainly in the mid and lower lobes bilaterally . Increased density along the major fissure is noted and could represent either fluid or volume loss . There is no pneumothorax . The tracheostomy tube and stent in the right main stem bronchus are in adequate position .
    OUTPUT:
    
Multilobar bilateral opacities concerning for pneumonia .