Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Inspiratory volumes are slightly diminished . The right hemidiaphragm is slightly elevated . There is minimal bibasilar atelectasis . There is upper zone redistribution , but no other evidence of CHF . Heart size is at the upper limits of normal . The aorta is calcified and minimally unfolded . Prominence of the right paratracheal soft tissues likely reflects mediastinal fat and vascular structures in a patient of this age . Mild prominence of the pulmonary hila is unchanged compared with chest x-ray from ___ ( interval chest CT demonstrated normal pulmonary hila . ) No frank consolidation or effusion is identified . There is a vague nodular opacity in the right mid zone laterally overlying the right fourth anterior and right seventh posterior ribs , without corresponding abnormality on the lateral radiograph -- ? artifact due to confluence of osseous shadows . Mild degenerative changes of the thoracic spine are noted .
    OUTPUT:
    
1 ) Slightly low lung volumes , but no pulmonary edema or acute focal infiltrate identified . Minimal bibasilar atelectasis . 2 ) Vague opacity right mid zone seen only on a PA view - ? artifact . Recommend shallow oblique views of the chest for further assessment .