Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Lung volumes are low . There is dense consolidation of the right lung base , which may represent pneumonia if the patient has infectious symptoms . However , a lung malignancy could have a similar radiographic appearance , and correlation with clinical symptoms is advised . Remainder of the lungs are clear . There is at least a small pleural effusion on the right . No pneumothorax . Heart size is enlarged .
    OUTPUT:
    
Dense right lung base opacity with an associated effusion . This could represent pneumonia in the setting of infectious symptoms , although malignancy could have a similar radiographic appearance . Clinical correlation is recommended , and a chest radiograph should be repeated in 4 weeks , if cross-sectional imaging is not warranted earlier .