Changes in serum anti-Müllerian hormone levels may predict damage to residual normal ovarian tissue after laparoscopic surgery for women with ovarian endometrioma  Michio Kitajima, M.D., Ph.D., Khaleque Newaz Khan, M.D., Ph.D., Koichi Hiraki, M.D., Tsuneo Inoue, M.D., Ph.D., Akira Fujishita, M.D., Ph.D., Hideaki Masuzaki, M.D., Ph.D.  Fertility and Sterility  Volume 95, Issue 8, Pages 2589-2591.e1 (June 2011) DOI: 10.1016/j.fertnstert.2011.01.036 Copyright © 2011 American Society for Reproductive Medicine Terms and Conditions

Figure 1 The percentage changes in serum anti-Müllerian hormone (AMH) levels after postoperative cystectomy according to the type of cyst and presence or absence of normal ovarian tissue within the cyst wall. Women underwent a unilateral cystectomy for endometrioma, which showed a significant decrease in postoperative serum AMH levels than in control women with benign cysts (∗P=.02, Student’s t-test). In women with endometrioma, the percentage change in serum AMH levels was significantly larger in women with a cyst wall containing normal ovarian tissue compared with that of women containing similar cysts without normal ovarian tissue (∗∗P=.01, Mann-Whitney U test). No significant difference between preoperative and postoperative serum AMH levels was observed in control women having these two types of cysts. Boxes represent the distance (interquartile range) between the first (25%) and third (75%) quartiles, and horizontal lines in the boxes represent median values. Fertility and Sterility 2011 95, 2589-2591.e1DOI: (10.1016/j.fertnstert.2011.01.036) Copyright © 2011 American Society for Reproductive Medicine Terms and Conditions