Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: PA and lateral views of the chest were reviewed and compared to the prior studies . Severe scoliosis that distorts the intrathoracic cavity is unchanged . Minimal left lower lung atelectasis is unchanged . The cardiac and mediastinal contours are unchanged . The visualized portions of the lung are free of focal consolidation , pulmonary edema , pleural effusion or pneumothorax . A ventriculoperitoneal shunt coures from the right neck through the thorax and into the abdomen .
    OUTPUT:
    
No radiographic evidence of pneumonia .