title: Conjoined twins in a trichorionic quadruplet pregnancy after ovulation induction with clomiphene citrate.
abstract: OBJECTIVE
  We report a case of conjoined twins in a trichorionic quadruplet pregnancy after ovulation induction with clomiphene citrate for anovulation.
  
  
  METHODS
  The diagnosis of a trichorionic quadruplet pregnancy was made in routine ultrasound at 11 weeks' gestation.
  
  
  RESULTS
  Conjoined twinning was thoracopagus and presented with increased nuchal translucency. Selective termination of the conjoined twins was performed with potassium chloride injection. The patient delivered 2 healthy infants after an uneventful follow-up.
  
  
  CONCLUSIONS
  Monozygotic twinning has increased with widespread usage of ovulation induction agents and assisted reproductive techniques. Early detection of conjoined twinning and chorionicity is essential for an optimal obstetric management and outcome.
authors.affiliation: Department of Obstetrics and Gynecology, Akdeniz University, School of Medicine, Antalya, Turkey. imendilcioglu@hotmail.com
authors.forename: Inanc
authors.initials: I
authors.lastname: Mendilcioglu
authors.forename: Mehmet
authors.initials: M
authors.lastname: Simsek
mesh_terms: D000328:Adult; D002996:Clomiphene / Q000494:pharmacology*; D005260:Female; D005300:Fertility Agents, Female / Q000494:pharmacology*; D005315:Fetal Diseases / Q000000981:diagnostic imaging*; D006801:Humans; D010062:Ovulation Induction; D011247:Pregnancy; D011783:Quadruplets; D014428:Twins, Conjoined; D016216:Ultrasonography, Prenatal
chemical_list: D005300:Fertility Agents, Female; D002996:Clomiphene