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Gestational Choriocarcinoma

Aggressive trophoblastic malignancy after pregnancy with markedly elevated β-hCG.

Written by: Saygı Hospital Health Guide Editorial Board
Last updated:

This content has been compiled by the Saygı Hospital Health Guide Editorial Board and is periodically reviewed by a specialist physician.

References (5)

This content is for informational purposes only and does not constitute medical advice. You can book an appointment at our Onkoloji department. Book Appointment →

What is Gestational Choriocarcinoma?

Gestational choriocarcinoma is a rare but highly aggressive malignant trophoblastic neoplasm that originates from the trophoblastic cells of the placenta and develops after pregnancy. It accounts for about 5% of all gestational trophoblastic disease (GTD). Roughly 50% of cases follow a complete hydatidiform mole, 25% follow a miscarriage or ectopic pregnancy, and 25% follow a term pregnancy.

Histologically, choriocarcinoma is an invasive tumor composed of two trophoblastic cell types (cytotrophoblast and syncytiotrophoblast) without chorionic villi. It tends toward early and widespread hematogenous metastasis, with the most common sites being lung (more than 80%), vagina, brain, and liver. Serum β-hCG is characteristically very high before treatment (reaching hundreds of thousands to millions) and serves as the diagnostic, response-monitoring, and surveillance marker.

The most striking feature of gestational choriocarcinoma is that despite its aggressive nature it is highly responsive to chemotherapy, with cure rates over 95% in low-risk patients and over 80% in high-risk patients. The FIGO scoring system (also known as the WHO scoring system) divides patients into low risk (score below 7) and high risk (score 7 or above), and treatment selection is guided by this score.

Symptoms

Abnormal uterine bleeding after pregnancy or molar pregnancy
Markedly elevated β-hCG (for diagnosis and monitoring)
Uterine enlargement, adnexal mass
Lung metastasis: cough, dyspnea, hemoptysis
Brain metastasis: headache, seizures, focal deficit
Liver metastasis: right upper quadrant pain
Vaginal metastasis: purple-colored nodules
Hyperthyroidism (β-hCG mimics TSH activity)

Risk Factors

Prior complete hydatidiform mole (the strongest factor — 15-20%)
Prior partial mole (less commonly)
Prior gestational trophoblastic disease
Advanced maternal age (over 40)
Young maternal age (under 20)
Blood group A (slight increase in risk)
Prior term pregnancy (post-term choriocarcinoma)

When to See a Doctor?

If you experience any of the following symptoms, seek medical attention promptly:

  • Lack of decline or rise in β-hCG after molar pregnancy: urgent gynecology/oncology referral
  • Postpartum persistent bleeding with elevated β-hCG
  • New hemoptysis, headache, or seizures after delivery — suspect metastasis
  • Regular β-hCG follow-up after molar treatment is essential

Treatment Methods

01
Low risk (FIGO score below 7): methotrexate monotherapy — weekly or every 8 days
02
High risk (FIGO score 7 or above): EMA-CO (etoposide, MTX, actinomycin-D, cyclophosphamide, vincristine)
03
Brain metastasis: EMA-CO plus intrathecal MTX plus whole-brain radiotherapy
04
Refractory or recurrent disease: EMA-EP, TE/TP, high-dose chemotherapy with autologous transplant
05
Surgery: usually not required — uterus is preserved (chemosensitive)
06
Contraception during treatment and for 12 months afterward
07
Long-term β-hCG follow-up: monthly for the first 12 months, then every 6 months

Which Department to Visit?

You can visit our Onkoloji department for these complaints. Our specialist physicians will create the most suitable treatment plan for you.

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Health Disclaimer: The information on this page is prepared for general informational purposes only. It does not replace medical diagnosis and treatment. Please consult your physician for your complaints. Saygı Hospital does not accept responsibility for actions taken based on the information on this page.