Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The lungs are clear without focal consolidation , pleural effusion or pneumothorax . Subtle prominence of bronchovascular markings at the medial right lung base appear unchanged from prior . No pulmonary edema is seen . The heart size is normal , and the mediastinal contours are normal . No acute osseous abnormality is seen .
    OUTPUT:
    
No acute intrathoracic process .