Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Frontal and lateral views of the chest were obtained . Again seen along the right middle lobe is a large ovoid area of opacity , most likely representing right middle lobe pneumonia . Alternatively , this could represent expanded fluid in the minor fissure . There is persistent elevation of the anterior right hemidiaphragm . The left lung is clear . No pleural effusion or pneumothorax is seen . The cardiac and mediastinal silhouettes are unremarkable .
    OUTPUT:
    
Persistent right middle lobe opacity , similar in appearance to chest radiographs two days prior , pneumonia versus less likely fluid in expanded fissure . Recommend followup to resolution .