Your question: What is Brenner tumor?

How rare is a Brenner tumor?

However, they are considered rare and account for only 1-3% of all ovarian tumors. Over 95% of Brenner tumors are benign.

Is Brenner tumor germ cell tumor?

Ovarian neoplasms are a heterogeneous group composed of tumors showing epithelial, germ cell, and sex cord stromal differentiation. The ovarian Brenner tumor (BT) represents a rare epithelial ovarian neoplasm and accounts for 1–2% of all ovarian neoplasms.

Are Brenner tumors bilateral?

Usually, benign Brenner tumors are unilateral and malignant Brenner tumors are bilateral(21).

Does a Brenner tumor produce estrogen?

Brenner tumor is a rare ovarian neoplasm that is seen in women of the fifth to sixth decade. Classified as benign, borderline, and malignant, these tumors may be associated with estrogen production, thus altering the estrogen–progesterone ratio.

What is a benign Brenner tumor?

A benign Brenner tumour is a rare non-cancerous ovarian tumour. These tumours may not cause any symptoms and may only be recognized by your pathologist after the ovary has been removed for other reasons. Occasionally benign Brenner tumours can be large, causing symptoms such as pelvic pain.

Is Brenner malignant?

Brenner tumors can be further classified as benign, proliferative (borderline), or malignant by histopathological review. The majority of these tumors are benign or proliferative, with malignant Brenner tumors (MBT) making up <5% of all diagnosed Brenner tumors.

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What causes a Brenner tumor?

The cause of Brenner tumors is unknown. They are usually found by accident during surgery for another reason or during a routine doctor’s examination. The diagnosis is made by microscopic examination of a piece of tumor obtained by a surgical biopsy . Treatment usually consists of surgery to remove the tumor.

Can germ cell tumors spread?

Germ cell tumors can spread (metastasize) to other parts of the body. The most common sites for metastasis are the lungs, liver, lymph nodes, and central nervous system. Rarely, germ cell tumors can spread to the bone, bone marrow, and other organs.

How common is ovarian germ cell tumor?

Malignant germ cell tumors are a form of ovarian cancer. In general, ovarian cancer affects about 1 in 70 women in the United States. Less than 5% of ovarian cancers are malignant germ cell tumors. About 20% to 25% of all benign ovarian tumors are germ cell tumors.

Is clear cell carcinoma?

Clear cell renal cell carcinoma is a cancer of the kidney. The name “clear cell” refers to the appearance of the cancer cells when viewed with a microscope. [5258] Clear cell renal cell carcinoma occurs when cells in the kidney quickly increase in number, creating a lump (mass).

What is a serous tumor?

Serous tumours are part of the surface epithelial-stromal tumour group of ovarian tumors, which derive from Mullerian epithelium. They are common neoplasms with a strong tendency to occur bilaterally, and they account for approximately a quarter of all ovarian tumors.

What are benign smooth muscle tumors called?

A leiomyoma, also known as fibroids, is a benign smooth muscle tumor that very rarely becomes cancer (0.1%). They can occur in any organ, but the most common forms occur in the uterus, small bowel, and the esophagus.

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