Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: PA and lateral chest radiographs were obtained . A small left pleural effusion has decreased in size since thoracentesis . No pneumothorax is present . Elevation of the left hilus and minor fissure and tenting of the left hemidiaphragm are sequelae of radiation changes . The right lung is clear . The cardiac and mediastinal contours are normal .
    OUTPUT:
    
Decreased size of small left pleural effusion status post thoracentesis . Findings were discussed with ___ , NP via telephone at approximately ___ on ___ .