B7-H3 was primarily found on the tumor stroma and in a lesser degree on tumor cells (82% vs. 18%) [29], while B7-H3+ stromal compartments were also more likely to have high rather than low levels of B7-H3 expression compared to B7-H3+ tumor cells (62.7% vs. 18.7%) [93]. The gene discussed is CD276; the disease is neoplasm.