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Streak Ovary and Gonadal Dysgenesis

Underdeveloped fibrous gonads in chromosomal disorders presenting with primary amenorrhea.

Written by: Saygı Hospital Health Guide Editorial Board
Last updated:

This content has been compiled by the Saygı Hospital Health Guide Editorial Board and is periodically reviewed by a specialist physician.

References (5)

This content is for informational purposes only and does not constitute medical advice. You can book an appointment at our Kadın Hastalıkları ve Doğum department. Book Appointment →

What is Streak Ovary and Gonadal Dysgenesis?

A streak gonad is a fibrous, hypoplastic ovary lacking germ cells, resulting from accelerated germ cell loss in utero. It is the hallmark finding of gonadal dysgenesis disorders, including Turner syndrome (45,X and mosaics), pure XX gonadal dysgenesis, Swyer syndrome (46,XY with SRY or downstream gene defect), and mixed gonadal dysgenesis (45,X/46,XY).

Affected adolescents typically present with primary amenorrhea, absent or incomplete pubertal development, low serum estradiol, and markedly elevated FSH and LH (hypergonadotropic hypogonadism). Turner syndrome includes characteristic short stature, webbed neck, lymphedema, cardiac and renal anomalies, while Swyer syndrome patients have normal female phenotype with tall stature.

Diagnosis combines karyotype, FISH for Y-chromosome material, pelvic ultrasound or MRI showing streak gonads and uterus, and FSH/LH/estradiol panel. Management includes hormone replacement therapy with estrogen titrated to body habitus and progesterone for endometrial protection, multidisciplinary care for Turner-related comorbidities, fertility counseling with oocyte donation, and prophylactic bilateral gonadectomy when Y-chromosome material is present due to the 15 to 30 percent risk of gonadoblastoma and dysgerminoma.

Symptoms

Primary amenorrhea after age 15
Absent or arrested pubertal breast development
Short stature (Turner syndrome)
Webbed neck and shield chest
Lymphedema in infancy
Cardiac and renal congenital anomalies
Tall stature (Swyer syndrome)

Risk Factors

Karyotype 45,X or mosaics
Karyotype 46,XY with SRY mutation
Mixed gonadal dysgenesis 45,X/46,XY
Family history of premature ovarian failure
Autoimmune polyglandular syndrome
Galactosemia (germ cell loss)
Pelvic radiation in childhood

When to See a Doctor?

If you experience any of the following symptoms, seek medical attention promptly:

  • Primary amenorrhea after age 15
  • Short stature with absent puberty
  • Lymphedema with congenital heart disease
  • Webbed neck or aortic coarctation
  • Suspected DSD on imaging or karyotype

Treatment Methods

01
Karyotype with FISH for Y-chromosome material
02
Pelvic MRI to characterize gonads and uterus
03
Estrogen replacement starting at low dose
04
Cyclic progesterone for uterine protection
05
Bilateral gonadectomy if Y material present
06
Cardiac and renal screening in Turner syndrome
07
Fertility counseling with oocyte donation

Which Department to Visit?

You can visit our Kadın Hastalıkları ve Doğum department for these complaints. Our specialist physicians will create the most suitable treatment plan for you.

Learn About Kadın Hastalıkları ve Doğum Department

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Health Disclaimer: The information on this page is prepared for general informational purposes only. It does not replace medical diagnosis and treatment. Please consult your physician for your complaints. Saygı Hospital does not accept responsibility for actions taken based on the information on this page.