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Mucinous epithelial tumours arising from ovarian mature teratomas: a tissue genotyping study

The association of ovarian mucinous tumours with teratomas is well documented at tissue level, suggesting that some ovarian mucinous tumours arise from teratomas. Teratomas, being of germ cell origin, are genetically distinct from somatic cells, therefore providing a molecular basis for DNA genotyping to separate teratoma‐derived mucinous tumours from metastatic ones. We assessed the diagnostic utility of DNA genotyping in ovarian mucinous tumours.