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[Scintigraphic detection of pheochromocytoma metastases. Morphologic control apropos of a case].

The authors report a case of malignant pheochromocytoma. They explain the difficulties of the diagnostic of malignancy which can only be confirmed by metastases. Radioisotope scanning with I131 metaiodobenzyl guanidine is the best available method to locate the primary tumor and the metastases. The results of radio isotope scanning are compared to the ultrastructural study.