Gestational trophoblastic disease a contemporary review of diagnostic and pathology. Current challenge and future directions for gynecologists and obstetricians
DOI:
https://doi.org/10.12775/JEHS.2024.59.005Keywords
Gestational trophoblastic disease, gestational trophoblastic neoplasia, syncytiotrophoblast, invasive hydatidiform mole, choriocarcinomaAbstract
Gestational trophoblastic disease (GTD) is a heterogenous group of disorders assosiated with abnromal proliferation of trophoblast and their course is characterized by varying degrees of malignancy. WHO classified GTD into three categories: tumor-like lesions, molar pregnancies and gestational trophoblastic neoplasms.HM is characterized by abnormal proliferation of both syncytiotrophoblast and cytotrophoblast, edema of placental villi, with or without the presence of a fetus. Complete and partial moles have been classified as two separate disease entities, and their division depends on the genetic material they contain. The complete mole has a complete set of chromosomes coming only from paternal genome, while the partial mole is triploid and the genetic material transferred comes from the father and the mother. Post-molar gestational trophoblast neoplasia (GTN) is a clinical diagnosis based on the observation of a persistent increase or persistently high hCG concentration after evacuation of the mole, requiring evaluation and treatment. Invasive hydatidiform mole, together with choriocarcinoma and placental tumor, belong to gestational trophoblast neoplasia. Currently, research has shown that short tandem repeat (STR) genotyping is the gold standard for making the correct diagnosis and this test should be performed if possible. GTD diseases originate from both syncytiotrophoblast and cytotrophoblast tissues and as a result of which they produce an extremely sensitive marker -human chorionic gonadotropin. The facts stated above and significant sensitivity to chemotherapy mean that the average cure rate for this disease currently exceeds 90%. Although the main treatment of gestational trophoblast neoplasia involves the use of cytostatics in cases with worse prognosis, i.e. those with a higher risk, surgery turns out to be an invaluable treatment method.
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