Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Single semi-erect AP portable view of the chest was obtained . There are low lung volumes . Cardiac silhouette remains top normal to mildly enlarged . There is a subtle right upper lobe opacity projecting where the medial upper right scapula and the posterior right fourth rib overlap . Recommend AP lordotic views or oblique views to assess for underlying pulmonary nodule . No additional evidence of consolidation is seen . There is no pleural effusion or pneumothorax . The cardiac and mediastinal silhouettes are stable .
    OUTPUT:
    
Right upper lobe opacity where the medial upper right scapula and the posterior right fourth rib overlap , could be artifactual , however , not well seen on the prior study . Recommend further evaluation with AP lordotic views and / or oblique views to assess for underlying pulmonary nodule . If finding persists on the followup radiographs , chest CT would be indicated .