Magnetic Resonance Imaging and 3-dimensional Computed Tomographic Angiography for Conservative Management of Proximal Interstitial Pregnancy by Hysteroscopic Resection After Transcatheter Arterial Chemoembolization.

Ectopic pregnancy implanted in the interstitial portion of the fallopian tube is a rare potentially life-threatening disorder. A case of unruptured interstitial pregnancy with prominent neovascularization in a 37-year-old woman was precisely localized in the proximal interstitial portion of the fallopian tube with a dilated proximal tubal ostium by magnetic resonance imaging and 3-dimensional computed tomographic angiography. After devascularization by transcatheter arterial chemoembolization, hysteroscopic resection of the interstitial gestational products was performed with single-port laparoscopic assistance. Postoperatively, 3 rescue doses of systemic methotrexate were administered to accelerate the resolution of gestational products followed by uneventful recovery. The uterine wall structure around the interstitial portion was well preserved at the cesarean delivery in the subsequent spontaneous gestation.