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Living with Placental site trophoblastic tumor

A rare cancer that can develop where the placenta was attached to the uterus after a pregnancy, miscarriage or termination.

Understanding Placental site trophoblastic tumor

Placental site trophoblastic tumor is a rare cancer that starts where the placenta was attached to the uterus.

It can happen after a pregnancy, miscarriage or termination. It is made of cells that produce human placental lactogen (hPL). Unlike other tumors, it usually does not cause tissue death, and bleeding is not severe. In some cases the cancer may spread to other parts of the body.

Signs & symptoms

Symptoms vary from person to person. GARD lists these:

  • Irregular bleeding after a miscarriage or termination
  • Unexplained bleeding after a normal delivery
  • Unexplained bleeding after an ectopic pregnancy
  • Missed periods

Not everyone has every symptom. GARD's list comes from the Human Phenotype Ontology.

Diagnosis

  1. Talk with your doctor

    Share the symptoms you've noticed, when they started and your family health history. Notes and photos can help.

  2. See a specialist

    Specialists who may be involved include cancer specialists, gynecologic cancer specialists, maternal-fetal medicine specialists and women’s reproductive health specialists.

  3. Ask which tests can help

    Your care team will decide which exams and tests can confirm the diagnosis.

Care & treatment

Care team
Cancer specialists (oncologists); Gynecologic cancer specialists (gynecologic oncologists); Maternal-fetal medicine specialists (pregnancy-related); Women’s reproductive health specialists (obstetricians / gynecologists)
Expert care
Ask about multidisciplinary care centers for rare conditions
Treatment
GARD doesn't list specific treatments for this condition. Your care team will tailor care to your symptoms.
Research
Clinical trials and observational studies may be options. See the research section below.

General information, not medical advice. Your care team makes the decisions.

Everyday life

Living with a rare condition is easier with support.

  • Connect with American Cancer Society and other patient organizations
  • Keep notes on symptoms, changes and questions for appointments
  • Ask about patient registries that help research
  • Look into financial aid and travel resources for care visits
Bring these questions to your next doctor visit
What tests confirm this tumor and show whether it has spread?
What treatment options are available?
How will I be monitored after treatment?

Quick facts

Symptoms usually startAdult

GARD doesn't describe a cause for this condition yet.

Urinary and Reproductive

Also known as: placental site gestational trophoblastic tumor; placental site gestational trophoblastic tumour; placental site trophoblastic tumor (morphologic abnormality); placental site trophoblastic tumour (morphologic abnormality); placental-site gestational trophoblastic neoplasm; placental-site gestational trophoblastic tumor

Patient organizations

Source: NIH GARD · Placental site trophoblastic tumorGARD ID 7403 · GARD page updated September 2026 · Plain-language summary by Know Rare; editorial review pending. General information, not medical advice.

You are more than your diagnosis

Perspectives from people navigating life with Placental site trophoblastic tumor.

Explore the Placental site trophoblastic tumor blog

Explore research for Placental site trophoblastic tumor

Explore actively recruiting Placental site trophoblastic tumor studies with HealthSpark.

HealthSpark

Find actively recruiting studies for Placental site trophoblastic tumor with HealthSpark. Share your city to explore research near you.

  • Recruiting studies from ClinicalTrials.gov
  • Share your city to look for research near you
  • Eligibility is confirmed by the study team

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Powered by HealthSpark, our AI chat helper · Study information from ClinicalTrials.gov · Eligibility is confirmed by the study team.

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