This monograph, which was more than five years in preparation, represents a very detailed account of pheochromocytoma, a tumor that is almost invariably lethal if untreated. In addition to its definitive presentation of the subject, this volume contains the most cur rent information regarding the diagnosis and management of pheochromocytoma. It is im portant to reemphasize the seriousness of diagnosing and treating pheochromocytoma with the aphorism of Esperson and Dahl Iversen that although a pheochromocytoma may be morphologically benign it is physio logically malignant (280) and with...