epithelioid trophoblastic tumour (ETT)

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

Epidemiology

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 .

Pathology

Location

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

Markers

Serum beta-HCG levels are often highly elevated .

Treatment and prognosis

The clinical behavior 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 .

Siehe auch:

• gestational trophoblastic disease