Fig 1: Western blot analysis of 8 PCC samples (labeled 1‐8) demonstrating the expression of PNMT relative to Actin as a reference protein. The signal for PNMT was apparent at approximately 31 kDa. In 6 out of 8 PCCs, an additional band of varying intensity at 25 kDa was detected. PCC, pheochromocytoma; PNMT, phenylethanolamine‐N‐methyltransferase.