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Living with Distal trisomy 11q

A rare chromosome condition that affects the shape of the head and face, learning, and sometimes the heart and other body systems.

Understanding Distal trisomy 11q

Distal trisomy 11q is a rare condition caused by an extra piece of the long arm of chromosome 11.

The condition varies a lot. It mainly involves differences in the head and face and intellectual disability. Some people also have short height, seizures, heart differences, or differences in the bones, fingers, or genitals. Hearing loss, language delay, pain insensitivity, and autistic features have also been reported. Signs begin during pregnancy or in the newborn period.

Signs & symptoms

GARD doesn't list specific symptoms for this condition separately, but the summary describes these features:

  • Intellectual disability
  • Differences in head and face shape
  • Short height
  • Seizures
  • Heart differences
  • Hearing loss and delayed expressive language

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 11q Research & Resource Group and other patient organizations
  • 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 hearing and language checks do you suggest?
What heart tests does my child need?
Should my child be watched for seizures?

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 an extra copy of part of the long arm of chromosome 11.

Genetic

Also known as: chromosome 11, partial trisomy 11q; distal duplication 11q; distal trisomy type 11q; telomeric duplication 11q; trisomy 11qter

Patient organizations

Source: NIH GARD · Distal trisomy 11qGARD ID 19318 · 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 trisomy 11q.

Explore the Distal trisomy 11q blog

Explore research for Distal trisomy 11q

Explore actively recruiting Distal trisomy 11q studies with HealthSpark.

HealthSpark

Find actively recruiting studies for Distal trisomy 11q 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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