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Living with Lymphedema-posterior choanal atresia syndrome

A rare inherited condition with a blocked back of the nose and early leg swelling from lymph fluid.

Understanding Lymphedema-posterior choanal atresia syndrome

Lymphedema-posterior choanal atresia syndrome is a rare genetic condition with choanal atresia (a blocked rear nasal opening) and early lymphedema of the legs.

Other reported features include facial differences, such as wide-set eyes, a broad forehead, a high-arched palate, small nipples, and a sunken chest. It is noticed in newborns.

Signs & symptoms

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

  • Blocked rear opening of the nose (choanal atresia)
  • Swelling from lymph fluid (lymphedema)
  • Fluid around the heart (pericardial effusion)
  • High palate

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 ear, nose, and throat specialists, genetic specialists and skin, hair, and nail specialists.

  3. Consider genetic testing

    Changes in PTPN14 are linked to this condition. Genetic testing and counseling can help confirm a diagnosis and explain what it means for your family.

Care & treatment

Care team
Ear, nose, and throat specialists (otolaryngologists); Genetic specialists (geneticists); Skin, hair, and nail specialists (dermatologists)
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 Children's Skin Disease Foundation
  • 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
Would PTPN14 gene testing help our family?
What can be done about the blocked nasal passage?
How should the lymphedema be managed?

Quick facts

Symptoms usually startNewborn
InheritanceAutosomal Recessive
GenesPTPN14

It is caused by changes in the PTPN14 gene. A child inherits a changed copy of the gene from each parent (autosomal recessive).

GeneticSkin

Also known as: lymphedema, posterior choanal atresia syndrome

Patient organizations

Broader rare-disease groups

Source: NIH GARD · Lymphedema-posterior choanal atresia syndromeGARD ID 16898 · 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 Lymphedema-posterior choanal atresia syndrome.

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