hyperthecosis

Diffuse hyperplasia of the theca cells of the graafian follicles.

- stromal h. condition in which luteinized cells are present in ovarian stroma at a distance from follicular structures.

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hy·per·the·co·sis -thē-'kō-səs n hyperplasia and luteinization of the theca interna of the graafian follicle

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hy·per·the·co·sis (hi″pər-the-koґsis) hyperplasia with excessive luteinization of the theca interna of the ovary; it may be associated with hirsutism and amenorrhea and is seen in most cases of polycystic ovary syndrome.