Multiple tumors of the sympathetic system.A report of a case of malignant schwannoma associated with functioning malignant pheochromocytoma

Abstract

N view of the common embryological derivation of the various components of the sympathetic system from the primordial cells ot the neural crest,5, 21, 40 interesting combinations of tumors might be expected.*, *0,31, 35, 3*, uQ, 40 Recently, at the Veterans Administration Hospital, Philadelphia, Pennsylvania, a patient was encountered who had a malignant schwannoma of the thorax associated with bilateral functioning malignant pheoc Iiromocytoma of the adrenal medulla. Associated morpho1og;ical features and biological characterisiics regarding growth, and functional status are deemed enough to be worthy of recording.