Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The lungs are clear . The cardiomediastinal silhouette , hilar contours , and pleural surfaces are normal . No pneumothorax or pleural effusion . Left Port - A - Cath is seen with tip in the right atrium , unchanged from prior exams . Tracheostomy is appropriately placed .
    OUTPUT:
    
1 . Unchanged placement of left Port - A - Cath . No acute cardiopulmonary process .