Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: PA and lateral views of the chest provided . Tracheostomy tube projects over the superior mediastinum . A left chest wall Port - A - Cath is again seen with its tip in the lower SVC . Lung volumes are low though lungs appear clear . No large effusion or pneumothorax . No signs of pneumonia or edema . Cardiomediastinal silhouette is stable . Bony structures are intact . Gas distended colonic loops noted below the diaphragm without evidence for free air .
    OUTPUT:
    
No acute findings .