Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: AP portable chest radiograph shows decrease in right pleural fluid compared to the study earlier the same day . No pneumothorax is seen . Apparent kinking of the ventriculoperitoneal shunt tubing at the level of the neck on the right may be related to head position .
    OUTPUT:
    
Significant decrease in right pleural effusion status post thoracentesis with no pneumothorax seen .