S100 protein-positive sustentacular cells in malignant and locally aggressive adrenal pheochromocytomas.

摘要: The absence or presence of S100-positive sustentacular cells has been previously shown to be correlated with benign and malignant pheochromocytomas paragangliomas. We evaluated a total 17 recurrent locally aggressive adrenal for their quantity cells. An was demonstrated in the majority cases, while group usually contained an abundance these However, one case constant moderate number primary site two sequential metastases found. conclude that may indicate lesion greater potential metastasis cells, when they are present pheochromocytoma, integral part tumor.