[Retroperitoneal non-secreting paraganglioma. Apropos of a case].

Paragangliomas are rare tumors arising from extraadrenal chromaffin cells. These tumors are most commonly found in the adrenal gland but other locations are possible. A 79-year-old woman with abdominal pain underwent computed tomography (CT scan). Surgery was indicated because of the increase in the size of the tumor. Histopathological examination revealed a non secreting paraganglioma in the left retroperitoneum. Paragangliomas are rare neuroendocrine tumors. They have a greater potential for malignancy than pheochromocytomas due to metastases or local recurrence making surgical excision the treatment of choice.