FUBP1 mutation was seen in six out of the twelve recurrent tumors; such mutation was acquired in recurrent tumors in 2 cases (patients 2 and 11), and the same FUBP1 mutation as that in the primary tumor was retained in the recurrent tumor in 4 cases (patients 5, 8, 10, and 12). Here, FUBP1 is linked to neoplasm.