Androgen-secreting adult granulosa cell tumor in a woman with polycystic ovary syndrome: a case report.

To present the clinicopathologic findings of the second case of androgen-secreting adult granulosa cell tumor (AGCT) in a woman with polycystic ovary syndrome (PCOS) and discuss in the light of the literature. Description of a case and discussion of the literature. A patient with oligomenorrhea, amenorrhea and hirsutism who was diagnosed as PCOS and treated by oral contraceptive for three years, then left ovarian solid and liquid mass was found and pathologically confirmed to be androgen-secreting AGCT after left oophorectomy. She got regular menstrual cycle and gave birth naturally, but clinical features of PCOS reappeared after breastfeeding. Androgen-secreting AGCT and PCOS have similar clinical features of hyperandrogenism, it is difficult to diagnose androgen-secreting AGCT when both diseases occur in the same patient. If the size of cystic mass in androgen-secreting AGCT is too small to differentiate from PCOM on imaging, pathological examination after surgery may be the only way to find the disease.