Abstract
An androgen-secreting tumor needs to be excluded in any woman with severe hyperandrogenism. We sought to characterize patients with biochemical hyperandrogenism in respect of tumor versus non-tumor etiologies, explore possible links between non-tumor hyperandrogenism and metabolic syndrome, and ascertain whether metformin therapy can elicit diagnostic reductions in serum testosterone (T). Seven-year retrospective study of all women referred to a university hospital endocrinology service with baseline T >4.0 nmol/l. Dataset comprised age, menopausal status, body mass index (BMI), presence/absence of hypertension, diabetes, acanthosis or dyslipidemia, along with changes in BMI and serum T following intervention with metformin, oophorectomy or dexamethasone. Non-tumor hyperandrogenism was defined by normalization of serum T or >40% reduction from baseline. Four out of 18 cases had adrenal carcinoma that was clinically obvious at initial presentation (one virilized, three Cushingoid). The remaining 14 were characterized by metabolic syndrome (BMI: 39.9 +/- 8.1 kg/m(2)), serum T of 6.14 +/- 1.6 nmol/l, and nadir serum T following intervention of 2.2 +/- 1.04 nmol/l. Diagnostic reductions in serum T occurred in 11/12 patients treated...Continue Reading
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