From the Department of Diagnostic Radiology, Einstein Healthcare Network, 5501 Old York Rd, Philadelphia, PA 19141-3098 (M.G., V.S.K., S.K.R.); Department of Radiology, Imperial College Healthcare NHS Trust, London, England (N.B., A.H.); and Endometriosis Center, Amsterdam, University Medical Center, Amsterdam, the Netherlands (V.M.).