Among the prevalent mutated genes, 7 with the same variant in exons with changes in protein coding are important for the development of mature cystic teratomas of the ovary: PTGFRN, DUSP5, MPP2, PHLDA1, PRR21, GOLGA6L2, and KRTAP4-2 (Fig. 4A). This evidence concerns the gene PHLDA1 and ovarian cystic teratoma.