“…Similarly, dexamethasone-suppressibility of serum T has been plagued by questions of specificity and is still the subject of an ongoing controversy. 3,5,[302][303][304][305][306][307][308][309][310][311][312][313][314][315][316][317][318] Although complete dexamethasone suppression of serum T (to less than 20 ng/dl) renders an ovarian hyperandrogenic source unlikely and suggests an ACTH-dependent adrenal disorder, several investigators proposed that dexamethasone may not be adrenal-selective and that it may also be capable of inhibiting ovarian androgen biosynthesis. 3,5,306,319 Consequently, dexamethasone suppressibility of serum T need not necessarily be equated with adrenal hyperandrogenism.…”