[Retroperitoneal paraganglioma: case report].

Paraganglioma are rare neoplasms arising from undifferentiated cells of the primitive neural crest. We report a case of a 53 years old patient presented with a large tissular retropéritoneal tumour situated above the left kidney. Serum Adrenaline, Nor drenaline and VMA levels were normal. Surgical complete resection of the tumour was performed without intra-operative incident. The histopathological examination and the immunohistochemical analyses concluded to a non secreting retroperitoneal paraganglioma. Postoperative course was uneventful.