title: Birth after intracytoplasmic sperm injection of ejaculated spermatozoa from a man with mosaic Klinefelter's syndrome.
abstract: OBJECTIVE
  To report a birth after intracytoplasmic sperm injection (ICSI) of ejaculated spermatozoa from a man with mosaic Klinefelter's syndrome detected by fluorescence in situ hybridization (FISH) analysis.
  
  
  METHODS
  A 35-year-old man with a normal appearance consulted our hospital because of sterility over a 5-year period. Chromosome analysis showed low-incidence mosaic Klinefelter's syndrome. Using FISH, 96 % hyperploidy of the lymphocytes was found. We examined the sex chromosome of the ejaculated spermatozoa. Using FISH, we examined 200 ejaculated spermatozoa and no hyperploidy was found.
  
  
  RESULTS
  The 33-year-old female partner of the male patient underwent an uncomplicated controlled ovarian hyperstimulation sequence using a combined recombinant-follicle stimulating hormone (rec-FSH) + human menopausal gonadotrophin (hMG) protocol, following late luteal phase pituitary down regulation. This culminated in the retrieval of seven oocytes, six of which were fertilized with ICSI. One ICSI attempt led to clinical pregnancy with a healthy baby girl.
  
  
  CONCLUSIONS
  We report a male patient with low-incidence mosaic Klinefelter's syndrome whose ejaculated spermatozoa were identified as being haploid by FISH before ICSI, leading to the successful pregnancy of his wife and the birth of a healthy baby girl.
authors.affiliation: Department of Urology, Faculty of Medicine, Toyama Medical and Pharmaceutical University, Sugitani 2630, Toyama 930-0194, Japan. akashitakuya@mail.goo.ne.jp
authors.forename: Takuya
authors.initials: T
authors.lastname: Akashi
authors.forename: Hideki
authors.initials: H
authors.lastname: Fuse
authors.forename: Yasuo
authors.initials: Y
authors.lastname: Kojima
authors.forename: Mikiko
authors.initials: M
authors.lastname: Hayashi
authors.forename: Sachiko
authors.initials: S
authors.lastname: Honda
mesh_terms: D000328:Adult; D005260:Female; D006801:Humans; D017404:In Situ Hybridization, Fluorescence; D007713:Klinefelter Syndrome / Q000235:genetics / Q000503:physiopathology*; D008297:Male; D009030:Mosaicism; D011247:Pregnancy; D011256:Pregnancy Outcome; D020554:Sperm Injections, Intracytoplasmic