Thecoma

Thecoma

Thecomas or theca cell tumors are benign ovarian neoplasms composed only of theca cells. Histogenetically they are classified as sex cord-stromal tumours. They are typically estrogen-producing and they occur in older women (mean age 59; 84% after menopause).

Grossly, the tumour appears solid and yellow, and tumour cells are large with abundant lipid-filled cytoplasm. Sixty percent of patients present with abnormal uterine bleeding, and 20% have endometrial carcinoma.

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