Journal of Reproduction & Infertility

Journal of Reproduction & Infertility

Patient with Disorders of Sex Development (DSD): A Case Report from a Tertiary Care Hospital in Thiruvananthapuram, India

Authors
1 Multi Disciplinary Research Unit, Government Medical College, Thiruvananthapuram, India
2 Department of Reproductive Medicine and Surgery, Sree Avittom Thirunal Hospital, Government Medical College, Thiruvananthapuram, India
3 Department of Pediatrics, Sree Avittom Thirunal Hospital, Government Medical College, Thiruvananthapuram, India
4 Child Development Centre, Government Medical College, Thiruvananthapuram, India
5 Department of Pathology, Government Medical College, Kottayam, Thiruvananthapuram, India
6 Department of Anatomy, Government Medical College, Thiruvananthapuram, India
Abstract
Background: 46 XX male syndrome, a rare case of infertility was first reported by de la Chapelle in 1964. In newborn males, the incidence rate of the syndrome varies from 1/9000 to 1/20000. Here, a case of 46 XX male syndrome is reported with clinical, biochemical and genetic changes of the patient and normal masculine features. Case Presentation: A 29 year old male with infertility registered at the Sree Avittom Thirunal Hospital of Government Medical College, Thiruvananthapuram for fertility treatment. He was diagnosed with non obstructive azoospermia in repeated semen analysis. Chromosomal analysis on peripheral blood lymphocytes has revealed 46 XX male syndrome and the result was confirmed with Fluorescent In situ Hybridization (FISH). Real time polymerase chain reaction failed to detect genes on azoospermia factor regions, AZFa, AZFb and AZFc of Y chromosome, but detected SRY gene positivity. Masculine features of patient were normal except small sized testis, ejaculatory dysfunction and azoospermia. Conclusion: Appearance of the external genitalia will be generally normal in 46 XX with SRY positive males and generally difficult to identify before puberty because there will not be any significant clinical indication. The present case report demonstrates that mere physical or clinical examination may not disclose the genetic defects. Therefore, in addition to general examination, it is essential to perform genetic analysis on men with infertility.
Keywords

  1. DelaChapelle A, Hortling H, Niemi M, Wennstroem J. XX sex chromosomes in a human male. first case. Acta Med Scand. 1964;175: Suppl 412:25-8.
  2. de la Chapelle A. Analytic review: nature and origin of males with XX sex chromosomes. Am J Hum Genet. 1972;24(1):71-105.
  3. Nielsen J, Sillesen I. Incidence of chromosome aberrations among 11148 newborn children. Humangenetik. 1975;30(1):1-12.
  4. Anık A, Çatlı G, Abacı A, Böber E. 46, XX male disorder of sexual development: a case report. J Clin Res Pediatr Endocrinol. 2013;5(4):258-60.
  5. Fechner PY, Marcantonio SM, Jaswaney V, Stetten G, Goodfellow PN, Migeon CJ, et al. The role of the sex-determining region Y gene in the etiology of 46, XX maleness. J Clin Endocrinol Metab. 1993;76:690-5.
  6. Boucekkine C, Toublanc JE, Abbas N, Chaabouni S, Ouahid S, Semrouni M, et al. Clinical and anatomical spectrum in XX sex reversed patients. Relationship to the presence of Y specific DNA-sequences. Clin Endocrinol (Oxf). 1994;40(6):733-42.
  7. Lopez M, Torres L, Mendez JP, Cervantes A, Alfaro G, Perez-Palacios G, et al. SRY alone can induce normal male sexual differentiation. Am J Med Genet. 1995;55(3):356-8.
  8. McElreavey K, Vilain E, Abbas N, Herskowitz I, Fellous M. A regulatory cascade hypothesis for mammalian sex determination: SRY represses a negative regulator of male development. Proc Natl Acad Sci. 1993;90(8):3368-72.
  9. Zenteno-Ruiz JC, Kofman-Alfaro S, Mendez JP. 46,XX sex reversal. Arch Med Res. 2001;32(6):559-66.
  10. Ferguson-Smith MA, Cooke A, Affara NA, Boyd E, Tolmie JL. Genotype-phenotype correlations in XX males and their bearing on current theories of sex determination. Hum Genet. 1990;84(2):198-202.
  11. Krausz C, Hoefsloot L, Simoni M, Tüttelmann F; European academy of andrology; European molecular genetics quality network. EAA/EMQN best practice guidelines for molecular diagnosis of Y-chromosomal microdeletions: state-of-the-art 2013. Andrology. 2014;2(1):5-19.
  12. Rajender S, Rajani V, Gupta NJ, Chakravarty B, Singh L, Thangaraj K. SRY-negative 46, XX male with normal genitals, complete masculinization and infertility. Mol Hum Reprod. 2006;12(5):341-6.