Thecoma is a rare ovarian
tumor, presenting usually in postmenopausal women as unilateral, benign, solid lesion. About 15% of affected patients develop
endometrial hyperplasia (EH) and 20% are diagnosed with
endometrial cancer. In this case report, we present 60-year-old women admitted because of recurrent
spotting of 5 years duration, which started 1 year after menopause. In history, the patient underwent three times
curettage procedures and once (1 year before admission) had
estradiol levels typical for reproductive-age women. At admission, we found elevated serum levels of
estradiol (222.5 pg/ml) and a small mass in the right ovary. The markers of
germ cell tumors were negative. After the initial diagnosis, the patient was qualified for total abdominal
hysterectomy with bilateral
salpingo-oophorectomy. The histopathological examination and immunohistochemical staining confirmed the
thecoma diagnosis. In follow-up examination after 8 weeks, we found decreased serum
estradiol levels and relief of the symptoms. In conclusion, we want to underline that in cases of EH, especially in patients with a history of recurrences, the special attention should be paid for differential diagnosis. In such cases, the
estrogen-secreting
tumors should be excluded.