Other unique pathological features were a multinodular growth pattern with nodules of various sizes separated by fibrous septa; tumor giant cells with high degree of atypia; moderately high mitotic rate with the presence of atypical forms; area of necrosis and vascular invasion; and a Ki-67 index of 30%–40% in areas with anaplastic features.2,16 No more than six cases of the anaplastic variant have been described to date.2,16,17 These patients presented with a painless, rapidly growing mass or testicular enlargement. The gene discussed is MKI67; the disease is neoplasm.