Malignant teratoma of the mediastinum
A teratoma is a type of cancer that contains one or more of the three layers of cells found in a developing baby (embryo). These cells are called germ cells. A teratoma is one type of germ cell tumor.
The mediastinum is located inside the front of the chest in the area that separates the lungs. The heart, large blood vessels, windpipe, thymus gland, lymph nodes and esophagus are found there.
Causes
Malignant mediastinal teratoma occurs most often in young men in their 20s or 30s. Most malignant teratomas can spread throughout the body, and have spread by the time of diagnosis.
Blood cancers are often associated with this tumor, including:
- Acute myelogenous leukemia (AML)
Acute myelogenous leukemia (AML)
Acute myeloid leukemia (AML) is cancer that starts inside bone marrow. This is the soft tissue in the center of bones that helps form all blood cell...
Read Article Now Book Mark Article - Myelodysplastic syndromes (group of bone marrow disorders)
Symptoms
Symptoms may include:
- Chest pain or pressure
- Cough
- Fatigue
- Limited ability to tolerate exercise
- Shortness of breath
Exams and Tests
The health care provider will perform a physical exam and ask about the symptoms. The exam may reveal a blockage of the veins entering the center of the chest due to increased pressure in the chest area.
The following tests help diagnose the tumor:
- Chest x-ray
- CT, MRI, or PET scans of the chest, abdomen, and pelvis
CT
A computed tomography (CT) scan is an imaging method that uses x-rays to create pictures of cross-sections of the body. Related tests include:Abdomin...
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A magnetic resonance imaging (MRI) scan is an imaging test that uses powerful magnets and radio waves to create pictures of the body. It does not us...
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A positron emission tomography (PET) scan is a type of imaging test. It uses a radioactive substance called a tracer to look for disease in the body...
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- Blood tests to check beta-HCG, alpha fetoprotein (AFP), and lactate dehydrogenase (LDH) levels
Beta-HCG
A qualitative human chorionic gonadotropin (HCG or hCG) blood test checks if there is a hormone called human chorionic gonadotropin in your blood. H...
Read Article Now Book Mark ArticleAlpha fetoprotein
Alpha fetoprotein (AFP) is a protein produced by the liver and yolk sac of a developing baby during pregnancy. AFP levels go down soon after birth. ...
Read Article Now Book Mark ArticleLactate dehydrogenase (LDH)
Lactate dehydrogenase (LDH) is a protein that helps produce energy in the body. An LDH test measures the amount of LDH in the blood.
Read Article Now Book Mark Article - Mediastinoscopy with biopsy
Mediastinoscopy with biopsy
Mediastinoscopy with biopsy is a procedure in which a lighted instrument (mediastinoscope) is inserted in the space in the chest between the lungs (m...
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Treatment
Surgical removal is the mainstay of treatment.
Chemotherapy is used to treat the immature teratoma. A combination of medicines (usually cisplatin, etoposide, and ifosfamide) is commonly used.
Chemotherapy
The term chemotherapy is used to describe cancer-killing drugs. Chemotherapy may be used to:Cure the cancerShrink the cancerPrevent the cancer from ...
Read Article Now Book Mark ArticleAfter chemotherapy is complete, CT scans are taken again to see if any of the tumor remains. Surgery may be recommended if there is a risk that the cancer will grow back in that area or if any cancer has been left behind.
Support Groups
There are many support groups available for people with cancer.
Cancer
The following organizations are good resources for information on cancer:American Cancer Society. Support and online communities. www. cancer. org/...
Read Article Now Book Mark ArticleOutlook (Prognosis)
The outlook depends on the tumor size and location and the age of the patient.
Possible Complications
The cancer can spread throughout the body and there may be complications of surgery or related to chemotherapy.
When to Contact a Medical Professional
Contact your provider if you have symptoms of malignant teratoma.
Reviewed By
Todd Gersten, MD, Hematology/Oncology, Florida Cancer Specialists & Research Institute, Wellington, FL. Review provided by VeriMed Healthcare Network. Also reviewed by David C. Dugdale, MD, Medical Director, Brenda Conaway, Editorial Director, and the A.D.A.M. Editorial team.
Triplette M, Varghese TK, Cheng G-S. Mediastinal tumors and cysts. In: Broaddus VC, Ernst JD, King TE, et al, eds. Murray and Nadel's Textbook of Respiratory Medicine. 7th ed. Philadelphia, PA: Elsevier; 2022:chap 115.
Wald O, Izhar U, Sugarbaker DJ. Lung, chest wall, pleura, and mediastinum. In: Townsend CM Jr, Beauchamp RD, Evers BM, Mattox KL, eds. Sabiston Textbook of Surgery. 21st ed. St Louis, MO: Elsevier; 2022:chap 58.