title: MRI of early unruptured ectopic pregnancy: detection of gestational sac.
abstract: We report two cases of unruptured tubal pregnancy that were evaluated on MRI at 5 weeks' gestation. In both cases, MRI revealed gestational sac-like structures surrounded by thickened walls outside the ovaries. At the periphery of gestational sac-like structures, small amounts of fresh blood were also identified. These findings highly indicate ectopic pregnancy in a patient with elevated human chorionic gonadotropin level.
authors.affiliation: Department of Radiology, Kyoto City Hospital, Kyoto, Japan. mizuki@mbox.kyoto-inet.or.jp
authors.forename: Mizuki
authors.initials: M
authors.lastname: Nishino
authors.forename: Katsumi
authors.initials: K
authors.lastname: Hayakawa
authors.forename: Kiyoshi
authors.initials: K
authors.lastname: Kawamata
authors.forename: Kazuhiro
authors.initials: K
authors.lastname: Iwasaku
authors.forename: Kosho
authors.initials: K
authors.lastname: Takasu
mesh_terms: D000328:Adult; D006063:Chorionic Gonadotropin / Q000097:blood; D005187:Fallopian Tubes / Q000473:pathology; D005260:Female; D006801:Humans; D008279:Magnetic Resonance Imaging; D011247:Pregnancy; D011271:Pregnancy, Ectopic / Q000175:diagnosis* / Q000473:pathology
chemical_list: D006063:Chorionic Gonadotropin