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Living with Distal monosomy 7q36

A rare chromosome condition with a wide range of effects on brain development, growth, the face, and other body parts.

Understanding Distal monosomy 7q36

Distal monosomy 7q36 is a rare condition caused by a missing piece of the long arm of chromosome 7.

Effects vary widely. A key feature can be holoprosencephaly, in which the brain does not divide fully into two halves. Other features include slow growth, delayed development, and facial differences such as clefts. Fingers, eyes, and genitals may be affected. Heart conditions have occasionally been reported. Signs begin during pregnancy or at birth.

Signs & symptoms

Symptoms vary from person to person. GARD lists these among the most common:

  • Holoprosencephaly (brain not fully divided)
  • Small head size (microcephaly)
  • Cleft palate
  • Seizures
  • Low muscle tone (hypotonia)
  • Small lower jaw (micrognathia)

Not everyone has every symptom. GARD's list comes from the Human Phenotype Ontology.

Diagnosis

  1. Talk with your doctor

    Share the symptoms you've noticed, when they started and your family health history. Notes and photos can help.

  2. See a specialist

    Specialists who may be involved include genetic specialists.

  3. Ask which tests can help

    Your care team will decide which exams and tests can confirm the diagnosis.

Care & treatment

Care team
Genetic specialists (geneticists)
Expert care
Ask about multidisciplinary care centers for rare conditions
Treatment
GARD doesn't list specific treatments for this condition. Your care team will tailor care to your symptoms.
Research
Clinical trials and observational studies may be options. See the research section below.

General information, not medical advice. Your care team makes the decisions.

Everyday life

Living with a rare condition is easier with support.

  • Connect with Chromosome Disorder Outreach
  • Keep notes on symptoms, changes and questions for appointments
  • Ask about patient registries that help research
  • Look into financial aid and travel resources for care visits
Bring these questions to your next doctor visit
What brain imaging does my child need?
Who should treat clefts and feeding concerns?
How should seizures be watched for?

Quick facts

Symptoms usually startduring Pregnancy and as a Newborn

GARD says changes in a person's genes cause this condition. The summary describes it as a partial loss of the long arm of chromosome 7.

Genetic

Also known as: distal deletion 7q36; distal monosomy 7q36 syndrome; distal monosomy type 7q36; monosomy 7qter; telomeric deletion 7q36

Patient organizations

Broader rare-disease groups

Source: NIH GARD · Distal monosomy 7q36GARD ID 18731 · GARD page updated September 2026 · Plain-language summary by Know Rare; editorial review pending. General information, not medical advice.

You are more than your diagnosis

Perspectives from people navigating life with Distal monosomy 7q36.

Explore the Distal monosomy 7q36 blog

Explore research for Distal monosomy 7q36

Explore actively recruiting Distal monosomy 7q36 studies with HealthSpark.

HealthSpark

Find actively recruiting studies for Distal monosomy 7q36 with HealthSpark. Share your city to explore research near you.

  • Recruiting studies from ClinicalTrials.gov
  • Share your city to look for research near you
  • Eligibility is confirmed by the study team

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Powered by HealthSpark, our AI chat helper · Study information from ClinicalTrials.gov · Eligibility is confirmed by the study team.

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