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In the present study, the case of a female patient with pseudo-hermaphrodism caused by an androgen-producing adrenocortical tumor is presented, and the possible mechanism is investigated. The expression of the luteinizing hormone/human chorionic gonadotrophin (LH/hCG) receptor in tumor tissues and normal adrenal tissues was analyzed using immunohistochemistry. Furthermore, the activities of 3β-hydroxysteroid dehydrogenase 2 (HSD2), cytochrome P450 17α-hydroxylase (CYP17) and 17β-hydroxysteroid dehydrogenase 3 (HSD3) enzymes were measured using enzyme-linked immunosorbent assay, and the expression levels of 3β-HSD2, 17β-HSD3, CYP17 and LH/hCG receptor mRNA were determined by quantitative polymerase chain reaction (qPCR). Immunohistochemical staining for the LH/hCG receptor was negative in the tumor tissue and positive in the normal adrenal tissue. The activities of 3β-HSD2 and CYP17 in the tumor tissue were higher than those in the normal tissue (P&lt;0.01), whereas the activity of 17β-HSD3 was lower (P&lt;0.01). The mRNA levels of 3β-HSD2 and CYP17 were higher (P&lt;0.01) and the levels of 17β-HSD3 and LH/hCG receptor were lower (P&lt;0.01) in the tumor tissue compared with those of the normal tissue. In conclusion, in the present study, a rare case of virilization by an androgen-producing adrenocortical tumor is present. The results indicate that it may be associated with increased activities of 3β-HSD2 and CYP17 but not with the expression of the LH/hCG receptor.

Increased 3β-hydroxysteroid dehydrogenase 2 and 17α-hydroxylase activities in a virilized adolescent female with adrenal adenoma: A case report