Abstract
Five patients with adrenocortical carcinoma were studied with respect to the production of various individual 17-ketosteroids during control periods and during treatment with amphenone (3,3-bis(p-aminophenyl)butanone-2). In all instances the drug caused a decrease in some or all of the steroid hormonemetabolites. A detailed discussion of each major component of the 17-ketosteroids leads to the conclusion that amphenone invariably lowers the production of hydrocortisone but exerts a variable influence upon other components of adrenal secretion. The results support the conclusion that the biosynthesis of adrenocortical hormones can be differentially altered, even in a neoplastic tissue.

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