Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Frontal and lateral views of the chest demonstrate low lung volumes . There is no pleural effusion , focal consolidation or pneumothorax . Fullness of the AP window is often seen in normal young women ; otherwise , hilar and mediastinal silhouettes are unremarkable . Heart size is normal . There is no pulmonary edema . Partially imaged upper abdomen is unremarkable . There is a fullness of the retrosternal space .
    OUTPUT:
    
No evidence of acute cardiothoracic process .