title: Comparison between spontaneous ovarian hyperstimulation syndrome and hyperreactio luteinalis.
abstract: METHODS
  We present here two patients with bilateral ovarian enlargement during the first trimester of pregnancy. We clinically diagnosed one case as spontaneous ovarian hyperstimulation syndrome and the other case as hyperreactio luteinalis.
  
  
  CONCLUSIONS
  It may be difficult to discriminate severe hyperreactio luteinalis in the first trimester from spontaneous ovarian hyperstimulation.
authors.affiliation: Department of Obstetrics and Gynecology, Tokyo Rinkai Hospital, 1-4-2 Rinkai-cho, 134-0086 Edogawa-ku, Tokyo, Japan. czg83542@mopera.ne.jp
authors.forename: Shunji
authors.initials: S
authors.lastname: Suzuki
mesh_terms: D000328:Adult; D002585:Cesarean Section; D003937:Diagnosis, Differential; D005260:Female; D006801:Humans; D007231:Infant, Newborn; D008297:Male; D010048:Ovarian Cysts / Q000175:diagnosis* / Q000000981:diagnostic imaging; D016471:Ovarian Hyperstimulation Syndrome / Q000175:diagnosis* / Q000000981:diagnostic imaging; D011247:Pregnancy; D011248:Pregnancy Complications / Q000175:diagnosis* / Q000000981:diagnostic imaging; D011261:Pregnancy Trimester, First; D016216:Ultrasonography, Prenatal