Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: AP single view of the chest has been obtained with patient in sitting semi-upright position . Comparison is made with the next preceding similar study obtained two hours earlier during the same day . During the examination interval the previously remaining right internal jugular approach sheath has been removed . The right - sided moderately sized pneumothorax in the apical area remains rather unchanged . Also the left sided very small apical pneumothorax separation can again be identified and also appears unchanged . No other significant interval changes are seen .
    OUTPUT:
    
Persistent bilateral apical pneumothoraces , very small on left side , moderate sized on right .