Figure 1.

Summary of all tumors included in this study. Axial T₁w images as a reference. Non-localized ¹³C spectra of the axial slice containing the largest tumor cross-section summed over all timepoints. ¹³C-Pyruvate and ¹³C-lactate signal summed over all time points superimposed on an axial T₁w image of the largest tumor cross-section. The border of the tumor is outlined in blue. A: Aorta, Lac: Lactate, Pyr: Pyruvate, PyrH: Pyruvate hydrate. A PASS score (Thompson, The American Journal of Surgical Pathology: May 2002) of ≥4 is associated with a potential for clinically aggressive behavior in pheochromocytoma. ¹H-MRI.