theca steroid-producing cell malignant tumor of ovary, not further specified
Malignant steroid cell tumor of the ovary, not otherwise specified is a rare malignant sex cord stromal tumor of ovary of unknown histological lineage, occurring in adult women, characterized, in most cases, by manifestations of androgen excess (hirsutism, hair loss, amenorrhea, or oligomenorrhea) and, occasionally, Cushing syndrome.