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Mcm8 Mcm9 Related Syndromes Cn382116

Published: July 22, 2026Updated: August 20, 2026

Rare genetic syndromes from MCM8 or MCM9 gene changes affecting DNA repair. May cause gonadal failure, infertility, and increased cancer risk. Management involves hormone therapy and cancer monitoring.

Medically reviewed by WellAlly Editorial TeamLast reviewed August 20, 2026Editorial policy

Key facts at a glance

ICD-10
Q55.9
ICD-11
LA00.0
Body system
reproductive
Severity
moderate
Chronic
true

Signs and symptoms

Common signs and symptoms that may indicate this condition.

Generalized symptoms

(reproductive)

Noticeable symptoms that may vary in intensity over time.

Frequency: Common at all stages

Primary ovarian insufficiency

(reproductive)

Secondary amenorrhea

(reproductive)

Menstrual irregularities

(reproductive)

Elevated gonadotropin levels

(reproductive)

Diagnosis and tests

How this condition is diagnosed and what test results mean.

Initial screening tests

1

Standard diagnostic workup

Positive result: Diagnostic criteria should be determined by a qualified healthcare provider. [Content pending medical review.]

Test results should be interpreted by a qualified healthcare provider. [Content pending medical review.]

Treatment options

Evidence-based approaches to managing this condition.

First-line treatments

1

Comprehensive Cancer Surveillance Program

Regular screening including annual physical examinations, imaging studies, and tumor marker testing given the increased malignancy risk associated with genomic instability.

monitoring
2

Exercise prescription and weight management

Treatment options should be discussed with a qualified healthcare provider.

lifestyle
3

Hormone Replacement Therapy

Testosterone or estrogen replacement therapy as indicated based on gonadal dysfunction to maintain bone health, energy levels, and metabolic function.

medication

Additional treatment options

Genetic Counseling Services

Psychogenetic counseling for patients and family members regarding inheritance patterns, reproductive options, and implications for relatives.

complementary

Mental Health Support

Counseling or therapy services addressing the psychological impact of chronic illness, fertility concerns, and cancer risk awareness.

psychological

Fertility Preservation Consultation

Referral to reproductive endocrinology for discussion of egg or sperm preservation options prior to gonadotoxic treatments or natural decline.

procedure

When to seek medical help

Recognize when you need immediate medical attention.

Schedule an appointment soon

Symptoms associated with this condition. Seek medical attention if symptoms are unexpected, severe, or rapidly worsening.- Contact your healthcare provider if symptoms persist or worsen. Seek emergency care for sudden severe symptoms.

Frequently asked questions

Common questions about this topic.

Q

What is Mcm8 Mcm9 Related Syndromes Cn382116?

Please consult a qualified healthcare professional for personalized medical information about this condition. [Content pending medical review.]

general

Sources and references

Authoritative medical sources used to create this content.

1

Wood-Trageser MA, Lesiak K, Chervova L, et al. MCM8 and MCM9 Mutations in Disorders of Sex Development and Ovarian Function. J Clin Endocrinol Metab. 2021.

review2021
2

International Consortium for Rare Chromatin Disorders. Clinical Management Guidelines for MCM8-MCM9 Related Syndromes. Orphanet J Rare Dis. 2023.

guideline2023
3

Tachon G, Cortes M, AlVarez J, et al. Genotype-Phenotype Correlation in MCM9-Associated Ovarian Insufficiency: A Prospective Cohort Study. Hum Genet. 2022.

clinical_trial2022
4

Fauchon C, Meiner V, Qiu W, et al. Systematic Review and Meta-Analysis of DNA Repair Gene Mutations in MCM8-MCM9 Syndromes. NPJ Genom Med. 2020.

meta_analysis2020

Medication Comparisons

Compare medications used to treat Mcm8 Mcm9 Related Syndromes Cn382116. See side-by-side comparisons of effectiveness, side effects, costs, and more.

View Medication Comparisons

This information is for educational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment.

Medical Disclaimer

This content is for general informational and educational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment. Always seek the guidance of a qualified healthcare provider with any questions you have about a medical condition, and never disregard professional medical advice or delay seeking it because of something you read here.

If you think you may have a medical emergency, call your local emergency number or go to the nearest emergency department immediately.

Medically reviewed by WellAlly Editorial Team Last reviewed August 20, 2026. · Read our editorial policy