Analysis of mononucleotide BAT25, BAT26 and CAT25 markers [10] showed instability of all of them and immunohistochemistry of MLH1/PMS2 and MSH2/MSH6 proteins indicated the loss of MSH2/MSH6 expression in the endometrial tumor; direct sequencing of the MSH2 gene on ABI 3500 (Applied Biosytems) genetic analyzer revealed the same c.2388delT mutation (p.Thr796ThrfxX15) in exon 14 (Figure 2). Here, MSH6 is linked to endometrium neoplasm.