What are the two types of germ cell tumors?

What is the most common germ cell tumor?

Teratomas are the most common type of germ cell tumor to develop in extragonadal (not in the ovary or testes) areas. Doctors usually treat teratomas with surgery because chemotherapy doesn’t work in a benign tumor.

What are germ cell tumors?

Germ cell tumors are growths of cells that form from reproductive cells. The tumors may be cancerous or not cancerous. Most germ cell tumors occur in the testicles or the ovaries. Some germ cell tumors occur in other areas of the body, such as the abdomen, brain and chest, though it’s not clear why.

What’s the difference between seminoma and nonseminoma?

Seminomas are very sensitive to radiation therapy. Nonseminoma: This more common type of testicular cancer tends to grow more quickly than seminomas. Nonseminoma tumors are often made up of more than one type of cell, and are identified according to these different cell types: Choriocarcinoma (rare)

What is the survival rate of germ cell tumor?

The 5-year survival rate for teens ages 15 to 19 is 93%. The survival and cure rates also depend on several factors, including the stage of the disease. The cure rate for children with a stage I or stage II germ cell tumor is 90%. The cure rate for a stage III tumor is 87%.

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Do germ cell tumors grow fast?

There are two types of germ cell tumors that start in the gonads, or reproductive organs: seminomas, which are slower-growing, and nonseminomas, which are faster-growing tumors.

Can germ cell tumor be cured?

Treatment for malignant tumors includes surgery or chemotherapy. The outlook depends on the stage of the cancer, the tumor’s size and whether it has spread to other parts of your body. Most germ cell tumors are treatable.

Are germ cell tumors curable?

Germ cell tumours generally respond very well to chemotherapy and most people are cured. Even cancers that have spread are still very treatable with chemotherapy.

How do you test for germ cell tumors?

In addition to a physical examination, the following tests may be used to diagnose a germ cell tumor:

  1. Biopsy. A biopsy is the removal of a small amount of tissue for examination under a microscope. …
  2. Blood tests. Alpha-fetoprotein (AFP). …
  3. Ultrasound. …
  4. Computed tomography (CT or CAT) scan. …
  5. Magnetic resonance imaging (MRI).

What is the most aggressive testicular tumor?

Nonseminomatous Germ Cell Tumors

Embryonal carcinoma: present in about 40 percent of tumors and among the most rapidly growing and potentially aggressive tumor types. Embryonal carcinoma can secrete HCG or alpha fetoprotein (AFP).

What is a pure seminoma?

Pure seminoma, classical seminoma. Specialty. Urology, oncology. A seminoma is a germ cell tumor of the testicle or, more rarely, the mediastinum or other extra-gonadal locations. It is a malignant neoplasm and is one of the most treatable and curable cancers, with a survival rate above 95% if discovered in early …

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What does seminoma mean?

(SEH-mih-NOH-muh) A type of cancer that begins in germ cells in males. Germ cells are cells that form sperm in males or eggs in females. Seminomas occur most often in the testicle, but they may also occur in other areas of the body, such as the brain, chest, or abdomen.

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.

What is a 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 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.