Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Lung volumes are low but similar when compared to the prior study . The patient has known tracheostomy is difficult to visualize due to patient positioning on today 's study . There is persistent prominence of the pulmonary vascular structures and cardiomegaly , however there has been progressive opacification of the right lung base with air bronchograms and the appearances are suspicious for a combination of pulmonary edema and pneumonia . Probable right - sided pleural effusion .
    OUTPUT:
    
Findings likely reflect a combination of pulmonary edema and pneumonia , the extent of consolidation at the right lung base appears to have progressed when compared to the prior study .