Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The cardiac , mediastinal and hilar contours are normal . An ill - defined right apical nodule is not well seen on the current exam , and was better demonstrated on the prior chest CT . The remainder of the lungs are clear and the pulmonary vascularity is normal . No pleural effusion or pneumothorax is present . There are multilevel degenerative changes in the thoracic spine .
    OUTPUT:
    
No acute cardiopulmonary abnormality . Known right upper lobe nodule as seen on the prior chest CT should be followed with chest CT in ___ .