Of the 15 ALTCLs, all expressed Ki 1, and 5 cases CD 56 positive (33 3%). Whereas, 9 cases of 15 ALTCLs showed EBERs positive (60%).

• 15例ALTCL中Ki?1均阳性（100%25），5例CD56阳性（33.；3%25），9例EBERs阳性。