图片1：Composite pheochromocytoma. Composite pheochromocytomas are composed of pheochromocytoma and another component resembling ganglioneuroma, ganglioneuroblastoma, or neuroblastoma. The tumor shown here is composed of pheochromocytoma (lower left) and ganglioneuroma (upper right).

图片2：Composite pheochromocytoma. Composite pheochromocytoma showing an intermixture of pheochromocytoma and ganglioneuroma. The spindling neural elements are in the lower portion of the photomicrograph. Composite pheochromocytomas often are functionally active tumors and secrete catecholamine .

图片3：Composite pheochromocytoma. Extensive area of ganglioneuroma in a composite pheochromocytoma. The amount of each component varies in these lesions. The different components may be admixed or have an abrupt transition .

图片4：Composite pheochromocytoma. Prominent ganglion cells are seen the ganglioneuromatous component of this composite pheochromocytoma. Nests of pheochromocytoma cells on the left are intermixed with ganglion cells and neural elements in this composite pheochromocytoma .

 catecholamine儿茶酚胺

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