Figure 3. Expression of CT-X antigens in a case of teratoma. Teratomasarerarelypositive,but one case was positive for MAGE-A (A), CT7 (B), GAGE (C), and NY-ESO-1 (D). The same small clusters of positive cells (< 1% of the tumor) were noted to simultaneously express these CT-X antigens in a CT-X-negative background. (Magnification, 200X).
