1. Surgical management of cesarean scar ectopic pregnancy: hysterotomy by transvaginal approach 
So-Yeon Kang, M.D., Byung-Joon Park, M.D., Yong-Wook Kim, M.D., Ph.D., Duck-Young Ro, M.D., Ph.D. 
Fertility and Sterility 
Volume 96, Issue 1, Pages e25-e28 (July 2011)
DOI: /j.fertnstert
Copyright © 2011 American Society for Reproductive Medicine Terms and Conditions

2. Figure 1
Transvaginal ultrasonography shows the cesarean section scar pregnancy. (A) A well encapsulated mass with the gestational sac located within the anterior uterine isthmus, in the location of the prior cesarean scar. (B) Magnification of the ultrasonographic findings on implantation area. CX = cervix; GS = gestational sac; BL = bladder; YS = yolk sac.
Fertility and Sterility  , e25-e28DOI: ( /j.fertnstert )
Copyright © 2011 American Society for Reproductive Medicine Terms and Conditions

3. Figure 2
Transvaginal hysterotomy was performed. (A) Arrow shows the protruding mass which is the ectopic sac in the isthmic portion of uterus. (B) After removal of the gestational sac, the defect site of the uterus (arrowhead) was identified and repaired.
Fertility and Sterility  , e25-e28DOI: ( /j.fertnstert )
Copyright © 2011 American Society for Reproductive Medicine Terms and Conditions

4. Figure 3
Postoperative ultrasonography revealed neither defect nor any other abnormality in the isthmic portion of the uterus. Arrowheads indicate the scar of the hysterotomy. BL = bladder; EM = endometrium.
Fertility and Sterility  , e25-e28DOI: ( /j.fertnstert )
Copyright © 2011 American Society for Reproductive Medicine Terms and Conditions