Gestational Choriocarcinoma, from the CureRays guide library.

Gestational choriocarcinoma is a rare, fast-growing cancer that arises from placental tissue after a pregnancy; despite spreading quickly, it is one of the most curable cancers because it responds dramatically to chemotherapy, with surgery and radiation in supporting roles.

What it is.

Gestational choriocarcinoma is a rare cancer that develops from the trophoblast — the tissue that normally forms the placenta — after any kind of pregnancy. It can follow a molar pregnancy, a miscarriage, an ectopic pregnancy, or even a normal delivery, sometimes months or years later. It is part of a group called gestational trophoblastic neoplasia. Although choriocarcinoma grows quickly and tends to spread early through the bloodstream — commonly to the lungs and, less often, the brain or liver — it has a remarkable feature: it is exquisitely sensitive to chemotherapy and produces a hormone (beta-hCG, the same hormone measured in pregnancy tests) that can be tracked in the blood to monitor treatment precisely. Because of this, even widespread disease is usually curable, and most patients keep their fertility. Care is guided by a risk score that determines whether single-drug or multi-drug chemotherapy is needed, and treatment is best coordinated by a specialized trophoblastic disease center.

How radiation treats it.

Radiation damages the DNA inside cancer cells so they can no longer divide and survive, while normal cells repair themselves more effectively. Gestational choriocarcinoma is cured mainly with chemotherapy, so radiation plays a focused, supporting role — most often helping control disease that has spread to the brain, where it is combined with chemotherapy and can reduce the risk of bleeding. When used, radiation is delivered as short, painless sessions and leaves no radioactivity in your body.

The ways we can treat it.

Radiation for brain metastases. When the cancer spreads to the brain, whole-brain radiation or stereotactic radiosurgery may be added to chemotherapy to control disease and reduce the risk of bleeding.

Stereotactic radiosurgery. For one or a few brain deposits, a precisely targeted high-dose treatment can control them while sparing surrounding brain tissue.

Palliative radiation. Short courses of radiation can control bleeding or relieve symptoms from a specific site of disease when needed.

Questions we hear often.

How can a cancer that spreads be so curable? Gestational choriocarcinoma is unusually sensitive to chemotherapy, and it produces the hormone beta-hCG, which can be measured in the blood to track treatment with great precision. Together, these mean that even cancer that has spread is cured in the great majority of patients.

Can I have children after treatment? Usually yes. Most patients are cured with chemotherapy alone and keep their uterus and fertility. Doctors typically recommend avoiding pregnancy for a defined monitoring period after treatment, after which normal pregnancies are common.

Why am I still getting blood tests after treatment ends? The beta-hCG blood test is followed for a period after treatment to make sure the cancer is fully gone and to catch any rare recurrence early. This monitoring is a key reason outcomes are so good.

This guide is informational only. It is not medical advice — please confirm anything here with your care team.