<<< 
    Compare 
    the pathological image-left and the physiological image-right 
    <<
    Please 
    search for that left-sided structure or region, which is different from the 
    right image  
 
IN 
  THIS PART OF THE PROGRAM IT IS NOT THAT MUCH IMPORTANT TO FIND THE RIGHT DIAGNOSIS. 
  IT IS MORE IMPORTANT TO SEE THE DIFFERENCE BETWEEN THE IMAGE ON THE LEFT AND 
  THE IMAGE ON THE RIGHT. THUS THE USER MAY GET A CLUE OF TYPICAL CT-FEATURES 
  LIKE FILLING-DEFECTS, CONTRAST ENHANCEMENT AND DENSITY.