HIF1A and neoplasm: Table 2 represents the intensity and percentage distribution of the HIF-1α expression within the tumor specimen. In 70% (n = 7) of the patients with any level of HIF-1α expression on immunohistochemistry, we demonstrated uptake on the 68Ga-Nitroimidazole hypoxia PET scan (Figure 2 and Figure 3). Statistically there was a very weak, almost negligible correlation between these findings (r = 0.058; p = 0.837).