Case Reports in Obstetrics and Gynecology with the presumed role of the placenta in the progression of the disease, correlates well with the timing of placental involution that has been previously documented [3, 8]. The resolution of mirror syndrome in this case allowed for continuation of the pregnancy to the beneﬁt of the unaﬀected twin, allowing for fetal maturation to the current 29-week estimated gestational age in a pregnancy which may have otherwise been delivered for maternal indications. Disclaimer The opinions or assertions contained herein are the private views of the authors and are not to be construed as oﬃcial or as reﬂecting the views of the Departments of the Army, and Navy, nor the Department of Defense. References [1] A. C. Vidaeﬀ, E. R. Pschirrer, J. M. Mastrobattista, L. C. Gilstrap, and S. M. Ramin, “Mirror syndrome: a case report,” Journal of Reproductive Medicine for the Obstetrician and Gynecologist, vol. 47, no. 9, pp. 770–774, 2002. [2] L. Carbillon, J. F. Oury, J. M. Guerin, A. Azancot, and P. Blot, “Clinical biological features of Ballantyne syndrome and the role of placental hydrops,” Obstetrical and Gynecological Survey, vol. 52, no. 5, pp. 310–314, 1997. [3] A. M. Goeden and D. Worthington, “Spontaneous resolution of mirror syndrome,” Obstetrics and Gynecology, vol. 106, no. 5, pp. 1183–1186, 2005. [4] D. Y. Midgley and K. Harding, “The mirror syndrome,” European Journal of Obstetrics & Gynecology and Reproductive Biology, vol. 88, pp. 201–202, 2000. [5] S. Rana, S. Venkatesha, M. DePaepe, E. K. Chien, M. Paglia, and S. A. Karumanchi, “Cytomegalovirus-induced Mirror syn- drome associated with elevated levels of circulating antiangio- genic factors,” Obstetrics and Gynecology, vol. 109, no. 2, pp. 549–552, 2007. [6] J. C. Livingston, K. M. Malik, T. M. Crombleholme, F. Y. Lim, and B. M. Sibai, “Mirror syndrome: a novel approach to therapy with fetal peritoneal-amniotic shunt,” Obstetrics and Gynecology, vol. 110, no. 2, pp. 540–543, 2007. [7] J. Espinoza, R. Romero, J. K. Nien et al., “A role of the anti- angiogenic factor sVEGFR-1 in the “mirror syndrome” (Bal- lantyne’s syndrome),” Journal of Maternal-Fetal and Neonatal Medicine, vol. 19, no. 10, pp. 607–613, 2006. [8] K. D. Heyborne and R. P. Porreco, “Selective fetocide reverses preeclampsia in discordant twins,” American Journal of Obstet- rics and Gynecology, vol. 191, no. 2, pp. 477–480, 2004. 3