Upload
dangthien
View
216
Download
0
Embed Size (px)
Citation preview
Signaling genes and receptor genes
SRY and SOX9
WT1 – Testicular agenesis or dysgenesis
Denys-Drash Syndrome, WAGR, Frasier Syndrome
DAX1
Dome JS, Huff V, Pagon RA, et al. Wilms tumor overview. GeneReviews™ [Internet]. 2003.Seattle, WA : University of Washington
Bilaterally non-palpable testes
Microphallus
Perineal hypospadias and bifid scrotum
Clitoromegaly
Posterior labial fusion
Palpable gonads in labial folds
Hypospadias with unilaterally absent gonad
Discordant phenotype and chromosomal gender
Prenatal androgen exposure
Maternal virilization
Family history of amenorrhea
Family history of unexplained infant deaths
Homogenous populations or consanguinity
Physical changes at puberty
Hypogonadism
Patients mostly sterile, male
Many variations based on number of X
chromosomes
Cotran R et al [eds]: Robbins pathologic basis of disease, ed 6, Philadelphia, 1999, Saunders, p 1158
Androgen Excess from CAH
▪ 4 types; ± salt wasting, hyperkalemia, hypertension
Normal female gonads
Spectrum of virilized genitalia
Diagnosed by electrolyte abnormalities,
deoxycortisol levels
Palpable gonads exclude diagnosis
Maternal dexamethasone early if family history
Cortisol replacement
Most identify as female, have reproductive
potential, require feminizing genitoplasty
Androgen Production Deficit
Severe enzyme deficiencies often result in
death
Adrenal and gonadal deficiencies
Receptor Deficiency
Spectrum of genitalia abnormalities
Complete androgen insensitivity syndrome
▪ 1-2% of females with inguinal hernia
Partial androgen insensitivity syndrome
▪ Virilized female, infertile male, undervirilized fertile
male
Wilson JD et al. Familial incomplete male pseudohermaphroditism, type 1. Evidence for androgen resistance and variable clinical
manifestations in a family with the Reifenstein syndrome. SON Engl J Med. 1974;290(20):1097.
5 α-Reductase Deficiency
Normal testes – impaired virilization
Failure of conversion to dihydroxytestosterone
Patients often raised female
Imperato-McGinley J et al. 5 alpha-reductase deficiency in man: an inherited form of male pseudohermaphroditism. Science.
1974;186(4170):1213
Abnormality of MIS production or
receptors
Normal Wolffian development without
regression of Müllerian ducts
Often normal phenotype with undescended
testes, discovered during hernia repair or
orchiopexy
Lee PA, Rock JA, Brown TR,et al: Leydig cell hypofunction resulting in male pseudohermaphroditism. Fertil Steril 1982; 37: 675-679
Hypoplasia, agenesis, or receptor
dysfunction
46 XY Female phenotype
Managed similarly to CAIS
Tugtepe, Halil, Thomas, David Terence et al- Journal of Pediatric Urology, 2014. Article in Press.
Treatment as varied as presentation
Considerations
Presenting age
Concordance of chromosomal and phenotypical
gender
State of genitalia at presentation
Gonadal status
Neoplastic potential
Tugtepe, Halil, Thomas, David Terence et al- Journal of Pediatric Urology, 2014. Article in Press.
Surgical Considerations
Functional Excretion
Cosmesis
Sexual Function
Reproductive Potential
Gender Identity
Timing
Psychosocial Considerations
Essential to have multidisciplinary team
Best cared for at centers with experience
Conflicting evidence on age of surgery
Monsplasty, clitoroplasty, vaginoplasty
Complete urogenital mobilization
Vaginal Reconstruction
Ludwikowski BM, González R. The Surgical Correction of Urogenital Sinus in Patients with DSD: 15 Years after Description of Total Urogenital
Mobilization in Children. Front Pediatr. 2013 Nov 21;1:41. eCollection 2013.
Long Term Outcomes
Overall favorable, compliance critical
Quality of life generally good
1. Willihnganz-Lawson KH et al. Secondary vaginoplasty for disorders for sexual differentiation: is there a right time? Challenges with
compliance and follow-up at a multidisciplinary center.J Pediatr Urol. 2013 Oct;9(5):627-32J
2. Fagerholm R et al. Mental health and quality of life after feminizing genitoplasty. J Pediatr Surg. 2012 Apr;47(4):747-51.
Shivaji B. et al. Single-stage feminizing genitoplasty in aphallia through an anterior saggital approach. Journal of Pediatric Surgery, 2009-11-01,
Volume 44, Issue 11, Pages 2233-2235.
João L. et al. Corporeal Sparing Dismembered Clitoroplasty: An Alternative Technique for Feminizing Genitoplasty. Journal of Urology, The,
2007-10-01, Volume 178, Issue 4, Supplement , Pages 1796-1801
Maria Helena Palma Sircili et al. Long-Term Surgical Outcome of Masculinizing Genitoplasty in Large Cohort of Patients With Disorders of Sex
Development. Journal of Urology, The, 2010-09-01, Volume 184, Issue 3, Pages 1122-1127
Technically challenging
Patients typically satisfied with
appearance but results variable
Penile length
Sexual function
Urinary symptoms
Maria Helena Palma Sircili et al. Long-Term Surgical Outcome of Masculinizing Genitoplasty in Large Cohort of Patients With Disorders of Sex
Development. Journal of Urology, The, 2010-09-01, Volume 184, Issue 3, Pages 1122-1127
Debate regarding timing and patient
involvement in decision-making
Family counseling from birth
Long-term counseling for patients
Gender identity, gender dysphoria, gender
nonconformity
Overwhelming urge to be of the opposite gender
Psychological and biological components
Gender reassignment
Significant variation in presentations
Medical treatment foremost
Successful management requires
multidisciplinary teams