[Topical diagnosis of chromaffin tumors based on the catecholamine content of selected plasma specimens].

The results of the clinical study are presented, concerning the use of a comparatively new method for the topical diagnosis of the chromaffine tissue tumors. The technique is based on the determination of the catecholamine content in several blood plasma samples, collected from different regions of the vena cava inferior and its flows. Twenty patients with suspected hormonal-active tumor of the chromaffine tissue were examined.