Tumors were usually less than 4 cm in size (52.3%); from 4 - 10 cm accounted for 44.9%; remaining giant-sized tumors over 10 cm (28.2%).
U dưới 4cm đường kính là 52,8%, 4-10 cm là 44.9%; u khổng lồ trên 10cm chỉ 2,8%.