Epithelioid trophoblastic tumour

An epithelioid trophoblastic tumour (ETT) is an extremely rare form of trophoblastic neoplasm. It is considered as a rare subtype of gestational trophoblastic disease 2,4.

It typically presents in women of reproductive age (peak age in late 30's) and can occur between 1 and 18 years following a previous gestation 3.

It most commonly occurs in the uterus and usually (albeit remote) in association with a gestational event. Rare extra uterine locations have also been described which include

  • Fallopian tube
  • broad ligament 5

Serum beta-HCG levels are often highly elevated 4.

The clinical behaviour of an ETT is often difficult to predict and while most cases follow a benign course following resection, there is a potential for metastatic disease 3.

Share article

Article information

rID: 15212
System: Gynaecology
Tag: cases
Synonyms or Alternate Spellings:
  • Epithelioid trophoblastic tumour (ETT)
  • Epithelioid trophoblastic tumours
  • Epithelioid trophoblastic tumors
  • Epithelioid trophoblastic tumor

Support Radiopaedia and see fewer ads

Updating… Please wait.

Alert accept

Error Unable to process the form. Check for errors and try again.

Alert accept Thank you for updating your details.