Is Leydig cell tumor cancer?
Leydig cell tumors are usually benign, but appproximately 10% are malignant. As with germ cell tumors, the route of spread is hematogenous and lymphatic to the retroperitoneal lymph nodes. Unlike germ cell tumors, however, Leydig cell tumors show relative lack of sensitivity to radiotherapy and chemotherapy agents.
Is Sertoli cell tumor cancer?
Approximately 10% of adult Sertoli cell tumors are malignant. These malignant tumors are usually characterized by large tumor size, areas of necrosis, vascular invasion, cellular atypia, and increased mitotic activity.
What causes Leydig cell tumor?
The cause of this tumor is unknown. There are no known risk factors for this tumor. Unlike germ cell tumors of the testicles, this tumor does not seem to be linked to undescended testes. Leydig cell tumors make up a very small number of all testicular tumors.
What is Brenner tumor?
Brenner tumor of the ovary is a solid, abnormal growth (tumor) on the ovary. Most Brenner tumors are not cancerous (benign). About 5% of Brenner tumors are cancerous (malignant) or have a small chance of spreading beyond its original location (borderline). These tumors most often occur in women after menopause.
What is Sertoli Leydig?
The Sertoli cells are normally located in the male reproductive glands (the testes). They feed sperm cells. The Leydig cells, also located in the testes, release a male sex hormone. These cells are also found in a woman’s ovaries, and in very rare cases lead to cancer.
What is the importance of Leydig cells?
Leydig cells are the primary source of testosterone or androgens in males. This physiology allows them to play a crucial role in many vital physiological processes in males, including sperm production or spermatogenesis, controlling sexual development, and maintaining secondary sexual characteristics and behaviors.
Which of the following is a symptom of a Sertoli cell tumor?
Sertoli cell tumors can produce estrogen and a condition called hyperestrogenism. Hyperestrogenism can cause the signs of feminization. This includes enlarged mammary glands and nipples, a pendulous prepuce, hair loss, and hyperpigmentation (darkening) of the skin.
What are Leydig cells?
Leydig cells are interstitial cells located adjacent to the seminiferous tubules in the testes. The best-established function of Leydig cells is to produce the androgen, testosterone, under the pulsatile control of pituitary luteinizing hormone (LH) (9).
What is Monodermal teratoma?
Monodermal teratomas are composed predomi- nantly or solely of one tissue type. There are three main types of ovarian monodermal tumors: stru- ma ovarii, ovarian carcinoid tumors, and tumors with neural differentiation.
