Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Frontal and lateral views of the chest were obtained . The heart is of normal size with normal cardiomediastinal contours . The lung volumes are low . There are diffusely increased interstitial markings bilaterally , compatible with known lymphangioleiomyomatosis . No pleural effusion , pulmonary consolidation , or pneumothorax . The osseous structures are unremarkable . No radiopaque foreign body .
    OUTPUT:
    
No acute cardiopulmonary process . Chronic interstitial changes compatible with known lymphangioleiomyomatosis .