Compared with normal adrenal glands, the concentration of GAL was much higher in phaeochromocytomas; however, the authors of the study reported that in both phaeochromocytoma patients and normal individuals, the concentration of GAL in plasma was below the detection limit of the assay (less than 10 pmol/liter) [144]. The gene discussed is GAL; the disease is pheochromocytoma.