Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: AP and lateral views of the chest . Exam is limited secondary to positioning and leftward rotation . The lungs appear grossly clear . There is no large confluent consolidation or evidence of an effusion . Cardiomediastinal silhouette , not definitely changed . No acute osseous abnormality is identified . Tube projects over the upper abdomen , potentially a gastrostomy tube .
    OUTPUT:
    
Limited exam without definite acute cardiopulmonary process .