MED12 and leiomyoma: As previously reported, the histopathological UL variants (18.1%, 17/94) harbored significantly fewer MED12 mutations than the conventional leiomyomas (56.9%, 37/65; P = 5.2 × 10−7) [12] (Table 1, see Additional file 5: Table S2 and Additional file 6: Table S3).