Definition: A neoplasm derived from ovarian mesenchyme, consisting chiefly of spindle-shaped cells that frequently contain small droplets of fat; gross features generally resemble those of a granulosa cell tumor, firm, yellow, encapsulated mass, ordinarily about 10 cm or less in diameter, but it tends to be less malignant; it may form considerable quantities of estrogens, thereby resulting in precocious development of secondary sexual features in prepubertal girls, or hyperplasia of the endometrium in older patients.
Synonym(s): theca cell tumor
[G. theke, box (theca), + -oma, tumor]
Search Stedman's Medical Dictionary
Examples: glitazone, GI cocktail, etc.