Figure 2.

¹⁸F-fluorodeoxyglucose positron emission tomography standardized uptake value (SUV) in pheochromocytoma and paraganglioma (PPGL) vs normal adrenal glands. Box and whiskers diagrams of maximum SUVs are statistically significantly higher for adrenal and extra-adrenal PPGLs than for normal adrenal glands in patients without PPGL and contralateral adrenal or extra-adrenal PPGL (boxes indicate 25^th and 75^th percentile, solid lines indicate median, and whiskers indicate range) (Tukey–Kramer test, two-sided).