Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Exam is markedly limited by patient rotation and positioning . Heart size is normal , but positioning is distorted due to patient rotation . The mediastinal and hilar contours are otherwise unremarkable . Pulmonary vasculature is not engorged . Lungs are clear without focal consolidation . No pleural effusion or pneumothorax is present . There are no acute osseous abnormalities .
    OUTPUT:
    
Limited study due to patient rotation and positioning . No acute cardiopulmonary abnormality .