Objective: Paraganglioma is a catecholamine-producing neuroendocrine tumor. Management of paraganglioma including its diagnosis is difficult, because it has no characteristic symptoms and many diseases can manifest as headache and high blood pressure. Herein, we report a 2 cases of paraganglioma of the abdomen with resitant arterial hypertension Design and method: Herein, we report a 2 cases of paraganglioma of the abdomen with resitant arterial hypertension Results: Case 1 A 24-year-old female presented with a history of resistant arterial hypertension. At the physical examination, we found high blood pressure. Full laboratory tests were requested and the following relevant data were found: noradrenaline elevated in blood and urine. An adrenal CT showed a retroperitoneal tissue mass on the inferior pole of the left kidney with heterogeneous enhancement. The scintigraphy concluded a left lumbar paravertebral paraganglioma. The diagnosis was confirmed by anatomopathological examination after surgery. We have noted a normalization of blood pressure after surgery. Case 2 A 46-year-old female with a history of recent arterial hypertension. She was receiving treatment with at three antihypertensive medications, including a diuretic and the blood pressure remained high. Full laboratory tests were requested and the following relevant data were found: metanephrine and noradrenaline elevated in blood and urine. A CT scann showed a retroperitoneal tissue. The scintigraphy concluded a paraganglioma. The diagnosis was confirmed by anatomopathological examination after surgery. The blood pressure became normal after surgery. Conclusions: Paragangliomas are relatively common. They constitute a cause of hypertension not to be ignored considering the serious consequences in the absence of surgical management.