Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The left lung is well - expanded and clear . There is elevation of the right hemidiaphragm , which results in crowding of the right cardiophrenic angle by hilar vessels limiting assessment . However , there may be patchy opacity in this region as the degree of opacification is felt to be more than expected . There is leftward shift of the mediastinum due to elevated right hemidiaphragm . Otherwise cardiomediastinal and hilar contours are unremarkable . There is no pleural effusion or pneumothorax .
    OUTPUT:
    
Findings raise concern for possible pneumonia of the right middle or lower lobe pneumonia although elevation of the right hemidiaphragm results in crowding of the right cardiophrenic angle by right hilar structures , limiting assessment .