Different intraoperative decisions for undiagnosed paraganglioma: Two case reports

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Abstract

BACKGROUND Paragangliomas may be preoperatively misdiagnosed as non-functioning retroperitoneal tumors and are sometimes suspected only at the time of intraoperative manipulation. Without preoperative alpha blockade preparation, a hypertensive crisis during tumor manipulation and hypotension after tumor removal may result in critical consequences. Therefore, primary consideration should be given to the continuation or discontinuation of surgery on the basis of the possibility of gentle surgical manipulation and hemodynamic stabilization. We report two cases of paragangliomas detected intraoperatively. CASE SUMMARY A 65-year-woman underwent laparoscopic small-bowel wedge resection. A hypertensive crisis occurred during manipulation of the mass, and an unrecognized catecholamine-producing paraganglioma was suspected. The surgeon and anesthesiologists believed that tumor excision could be performed with minimal manipulation of the tumor because the tumor was in a favorable location. Serious hemodynamic instability did not occur with aggressive use of vasoactive drugs. A week later, a 54-year-man underwent open resection of a 3-cm-sized retroperitoneal mass and showed the same findings during mass manipulation. For this patient, continuous manipulation of the mass seemed inevitable due to adhesion between the right adrenal gland and the mass in a narrow surgical field. The surgeon and anesthesiologists decided to cancel the surgical procedure and planned to perform a reoperation after alpha blockade therapy. Two weeks later, the tumor was uneventfully removed with small doses of vasoactive drugs. CONCLUSION When an undiagnosed paraganglioma is suspected intraoperatively, reoperation after adequate preparation should be considered as an option to avoid fatal outcomes.

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APA

Kang, D., Kim, B. eun, Hong, M., Kim, J., Jeong, S., & Lee, S. (2022). Different intraoperative decisions for undiagnosed paraganglioma: Two case reports. World Journal of Clinical Cases, 10(30), 11059–11065. https://doi.org/10.12998/wjcc.v10.i30.11059

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