Figure 2.
NY-ESO-1 expression in gastrointestinal stromal tumor (40 ×): (a), strong and diffuse expression (3+, >90% of tumor cells) in gastrointestinal stromal tumors (GIST) (1/155); (b), focal and moderate expression (2 +, <50% of tumor cells) in GIST (1/155); (c), focal and weak expression (1 −2 +, <2% of tumor cells) in two cases of GIST (2/155); (d), negative (0 +, 0%) in 151 cases of GIST (151/155).