Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Frontal and lateral views of the chest demonstrate right lung base opacity obscuring right hemidiaphragm and partially obscuring the right cardiac border . The opacity projects over lower thoracic spine on the lateral view . The right costophrenic angle is obscured , suggestive of small pleural effusion . The left lung is clear . There is no pulmonary edema or pneumothorax . The hilar and cardiomediastinal silhouettes are unchanged . The heart size is normal . A partially imaged upper abdomen is unremarkable . Small - to - moderate levoscoliosis of the thoracolumbar spine is unchanged .
    OUTPUT:
    
Right lung base opacity appears new from ___ exam , with associated small right pleural effusion , suggestive of pneumonia .