Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The cardiomediastinal silhouette and pulmonary vasculature are normal . There is no pleural effusion or pneumothorax . The right hemidiaphragm is mildly elevated . An opacity seen along the right lung base , which is also seen posteriorly on the lateral view . In the appropriate clinical context , this may represent pneumonia . However , other pathologies are not excluded .
    OUTPUT:
    
Mild abnormality involving the right hemidiaphragm and opacity at the right lung base , in the appropriate clinical context , may be related to pneumonia . If there is high suspicion for pulmonary embolism , CT should be obtained , since these findings are nonspecific .