FAP and neoplasm: Figure 6D demonstrates FAP and GLUT1 expression within a tumor sample. According to visual assessment (Table 1), there was a pronounced FAP expression intensity in the tumor stroma (median intensity grade, 3 [range, 2–3]; mean expression of stromal cells, 90% [range, 50%–95%]), whereas there was largely no FAP expression on the tumor cells themselves (median intensity grade, 0 [range, 0–1]; mean tumoral expression, <1% [range, <1%–5%]).