Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Frontal and lateral views of the chest were obtained . Lung volumes are slightly low resulting in bronchovascular crowding . There is no focal consolidation , pleural effusion or pneumothorax . Heart size is normal . Mediastinal silhouette and hilar contours are normal allowing for lung volumes . The ventriculoperitoneal shunt projects over the right hemithorax . A catheter fragment in the left upper quadrant is unchanged from ___ .
    OUTPUT:
    
No acute intrathoracic process .