BCL2L1 and endometrial carcinoma: However, significant differences of Bcl-xs/l expression were detected between normal endometrial tissue and atypical hyperplasia endometrial tissue (t = 2.42, P = 0.04), as well as between normal endometrial tissue and endometrial carcinoma tissue (t = 4.14, P = 0.00) (Fig. 4).