Primary mixed germ cell tumor of the liver with sarcomatous components

Figure 3 Tumor cells possess isochromosome 12p and 12p overrepresentation, which are characteristic of tumors of germ cell origin. FISH showing cells with 2-7 (green) 12p signals and 1-4 (orange) 12 centromere signals in yolk sac tumor (A), and rhabdomyoblastic cells (B). (green = 12p probe; orange = 12 centromere probe; magnification × 1000).