Context: Present knowledge about intraoperative management. morbidity. and mortality of patients with undiagnosed catecholamine-producing tumors is mostly based on published case reports and anecdotal evidence. Aims: The aim was to summarize the management and outcomes of reported cases and analyze for practice patterns. https://www.jmannino.com/quick-save-Canon-imageCLASS-MF227dw-Monochrome-Multifunction-Laser-Printer-great-choice/