IMAGING FEATURES OF A PRIMARY HEPATIC PHE OCHROMOCYTOMA

Extra-adrenal pheochromocytoma are extremely uncommon tumors. They dem onstrate abdominal (97 % of the cases), thoracic, vesical or cervical localizations. We report the case of a hepatic pheochromocytoma in a y oung patient with a post history of labile arterial hypertension. Ultr asonography, computed tomography and magnetic resonance imaging featur es were similar to those of adrenal pheochromocytoma. The presence of neuroendocrine cells was supported by immunohistochemical criteria. Hi stological observation showed a lack of local extension. In addition, four years after surgery, there was no apparent clinical syndrome sugg esting tumor recurrence or metastasis occurrence. These observations s upports the diagnosis of non malignant, primary hepatic pheochromocyto ma. To our knowledge, this is the first radiologic description of this kind of tumor.