To date, ARID1A sequencing studies are lacking in non-carcinoma-related endometriosis, probably due to the fact that the occurrence of ARID1A mutations is expected to be low in endometriosis (considering that the relative risk to developing ovarian cancer during a lifetime is approximately 1.5%) and that ARID1A sequencing studies are technically challenging, due to the large size of the gene and the random distribution of the mutations along the gene. This evidence concerns the gene ARID1A and carcinoma.