“ Tumors that arise from the chromaffin cells of the adrenal medulla are called pheochromocytomas, and those that arise in an extraadrenal location (10%) are referred to as paragangliomas.” Imaging of Uncommon Retroperitoneal Masses Rajiah P et al. RadioGraphics 2011; 31:949-976
“ Forty percent of paragangliomas produce high catecholamine levels, which result in symptoms such as headache, palpitations, excessive sweating, and elevated urinary metanephrine or VMA levels.” Imaging of Uncommon Retroperitoneal Masses Rajiah P et al. RadioGraphics 2011; 31:949-976
“ Lymphangioma is a developmental malformation that is caused by failure of communication of retroperitoneal lymphatic tissue with the main lymphatic vessels. Lymphangioma accounts for 1% of all retroperitoneal neoplasms .It is asymptomatic and is more common in men.” Imaging of Uncommon Retroperitoneal Masses Rajiah P et al. RadioGraphics 2011; 31:949-976