As the patient’s tumor produced both metanephrines and normetanephrines, it was predicted that her tumor belongs to the Cluster II classification in PCC genes associated with kinase signaling including RET, NF1, and TMEM127, as opposed to Cluster I PCC tumors that are associated with pseudohypoxia signaling pathway (21). The gene discussed is NF1; the disease is adrenal gland pheochromocytoma.