Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Lung volumes are low . The cardiomediastinal silhouette and pulmonary vasculature are unremarkable . There is no definite pneumothorax or pleural effusion . Again noted is a 5 mm nodular opacity in the right apex , stable since ___ .
    OUTPUT:
    
No acute intrathoracic process .