Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: A central venous catheter has been removed . The cardiac , mediastinal and hilar contours appear stable . Streaky opacities at the lung bases , greater on the left than right , with mild relative elevation of the right hemidiaphragm , appear unchanged and suggest atelectasis . Lungs appear otherwise clear . Fissures are again minimally thickened . A small pleural effusion has probably resolved on the left side at least for the most part .
    OUTPUT:
    
Decrease in small left pleural effusion ; otherwise unchanged .