Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Single frontal image of the chest demonstrates low lung volumes , likely secondary to poor inspiration . The right upper lobe opacity is unchanged from previous imaging . Bilateral opacities at the bases , right greater than left , are essentially unchanged from previous imaging . Bilateral pleural effusions are unchanged . A chest tube is again seen in place on the left . There is no pneumothorax . Cardiomediastinal silhouette is unchanged . Visualized osseous structures are unremarkable .
    OUTPUT:
    
Chest tube in place with no pneumothorax . Essentially unchanged chest radiograph .