Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Tracheostomy tube is midline , grossly unchanged in position compared to prior . Median sternotomy wires are intact . Left PICC ends in the mid SVC . There is no focal lung consolidation . Cardiomediastinal silhouette is stable . There is no pleural effusion or pneumothorax .
    OUTPUT:
    
No evidence of pneumonia .