Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Stable postsurgical changes related to prior right upper lobectomy are again noted , with persistent right apical pleural fluid and slight rightward mediastinal shift due to volume loss . The cardiomediastinal silhouette is unchanged . Hazy opacity about the left hilus is also noted anteriorly , compatible with lingular pneumonia . There is no left pleural effusion or pneumothorax . Anterior cervical disc fusion hardware is unchanged in appearance .
    OUTPUT:
    
Findings concerning for lingular pneumonia .