Theca Lutein cyst.

Theca lutein cysts are dominated by theca interna cells. Grossly the cut surface of the ovary is often partly yellow and partly hemorrhagic. Hyperplasia of the theca interna cells is the predominant characteristic. It is beefed that these cysts are the result of excessive stimulation of the theca interna by high levels of circulating hCG. Conditions which high levels of hCG are found are multiple pregnancies, gonadotropin therapy for infertility, and trophoblastic disease.

Edward C. Klatt, M.D.

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