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Updated: Aug 25, 2026
Microsatellite DNA Genotyping and Flow Cytometry Ploidy Analyses of Formalin-fixed Paraffin-embedded Hydatidiform Molar Tissues
Published on: October 20, 2019
[DNA analysis in gestational trophoblastic disease]
V Repiská1, J Vojtassák, M Korbel'
1Ustav lekárskej biológie a genetiky LF UK v Bratislave.
Objective:
DNA analysis of different forms of gestational trophoblastic disease.
Design:
Retrospective clinical study.
Setting:
Slovak Center of Trophoblastic Disease, Bratislava, Slovak Republic.
Methods:
In the period of September 1993 to April 2003, eighty-nine cases of gestational trophoblastic disease were analysed. There were 22 cases of partial hydatidiform moles, 58 cases of complete hydatidiform mole, 5 cases of invasive mole and 4 cases of gestational choriocarcinomas. Southern hybridization and polymerase chain reaction were used for DNA analysis.
Results:
From 22 analyzed cases of partial hydatidiform moles 19 (86.4%) were triploid and 3 (13.6%) diploid ones. There were 58 cases of complete hydatidiform mole and out of them 29 (50%) were homozygous, 28 (48.3%) heterozygous, and in one case (1.7%) both paternal and maternal genome was detected. In 8 cases of heterozygous and in one case of homozygous complete hydatidiform mole occurred a malignant transformation to gestational choriocarcinoma.
Conclusions:
Molecular analysis can determine the nuclear DNA origin of complete hydatidiform mole and allow us to define the patients with higher risk of malignant transformation usually to gestational choriocarcinoma.
