Endocrine Abstracts

Introduction: Pheochromocytomas (PHEOs) are rare catecholamine-producing tumors with metastatic potential. Composite PHEOs are rare (3% of adrenal tumors) including components other than adrenal chromaffin cells. We report a case of a rare composite neoplasm with a very rapid disease progression.Case report: A 57-year-old male was referred to the Endocrinology Department for investigation of a retroperitoneal mass. He presented with nonspecific symptoms ...