What is gynandroblastoma?
Gynandroblastoma is an extremely rare sex cord-stromal tumor with both female (granulosa cell tumor) and male (Sertoli-Leydig cell tumor) elements. Juvenile granulosa cell tumors are also very rare and are so named because they usually occur in children and adolescents.
What is Arrhenoblastoma?
Listen to pronunciation. (uh-REE-noh-blas-TOH-muh) A rare type of ovarian tumor in which the tumor cells secrete a male sex hormone. This may cause virilization (the appearance of male physical characteristics in females).
What is a Thecoma?
Definition. Thecomas are defined as stromal tumors that resemble thecal cells of the developing follicle and that are composed of a minimum (less than 10%) of cells with granulosa cell differentiation. They are only one-third as common as granulosa cell tumors and account for less than 1% of all ovarian tumors.
What is Dysgerminoma of the ovary?
(DIS-jer-mih-NOH-muh) A type of cancer that begins in germ cells in females. Germ cells are cells that form sperm in males or eggs in females. Dysgerminomas occur most often in the ovaries, but they may also occur in other areas of the body, including the central nervous system.
What is granulosa cell tumor?
Granulosa cell tumor of the ovary is a rare type of ovarian cancer that accounts for approximately 2% of all ovarian tumors. This type of tumor is known as a sex cord-stromal tumor and usually occurs in adults. Granulosa cell tumors of the ovary cause higher than normal levels of estrogen in a woman’s body.
What is a Gonadoblastoma?
(goh-NA-doh-blas-TOH-muh) A rare tumor that is made up of more than one type of cell found in the gonads (testicles and ovaries), including germ cells, stromal cells, and granulosa cells. Gonadoblastomas are usually benign (not cancer), but they may sometimes become malignant (cancer) if not treated.
What is a Luteoma?
Luteoma of pregnancy is a rare, benign condition characterized by a tumor-like mass of the ovary that emerges during pregnancy and regresses spontaneously after delivery. It is usually asymptomatic and the diagnosis is generally incidental.
What is a Fibrothecoma of ovary?
Ovarian fibrothecoma is a rare, benign, sex cord-stromal neoplasm, with a typically unilateral location in the ovary, characterized by mixed features of both fibroma and thecoma. Patients may be asymptomatic or may present with pelvic/abdominal pain and/or distension and, occasionally, with post-menopausal bleeding.
Can Dysgerminoma be benign?
Dysgerminoma: This is the most common type of malignant ovarian germ cell tumor. Mature teratoma (dermoid cyst or ovarian cyst): This is the most common type of benign ovarian germ cell tumor. These noncancerous tumors usually grow in teenage girls and young women.
Is Dysgerminoma aggressive?
Although all dysgerminomas are considered malignant, only about one third are aggressive. These tumors usually respond well to therapy.