Question 1

What is Nager acrofacial dysostosis?

Accepted Answer

Nager acrofacial dysostosis, also known as Nager syndrome, is a condition present at birth that affects the development of the face and limbs. It is marked by differences in facial structure such as underdeveloped cheekbones (malar hypoplasia), a small lower jaw (micrognathia), and unusual ear shapes. These features can lead to challenges with appearance and sometimes with functions related to these structures.

People with this condition are born with these facial differences and variable limb differences, especially affecting the thumb or big toe areas (preaxial limb defects). The condition is a congenital malformation syndrome, meaning the differences occur during early development. Although the signs may vary among people, the condition is recognized by its typical facial and limb features.

Question 2

What are the symptoms of Nager acrofacial dysostosis?

Accepted Answer

Common signs include facial differences such as a small lower jaw, underdeveloped cheekbones, and abnormal external ear structures. Additionally, there can be variable limb differences, particularly in the areas of the thumbs or big toes. The severity and specific features can differ from one person to another.

Question 3

What causes Nager acrofacial dysostosis?

Accepted Answer

This condition is related to changes in the SF3B4 gene. The alteration in this gene is thought to affect early development, leading to the facial and limb differences seen in people with Nager syndrome. Associated genes include SF3B4.

Question 4

How is Nager acrofacial dysostosis inherited?

Accepted Answer

Nager acrofacial dysostosis follows an autosomal dominant inheritance pattern. This means inheriting just one copy of the altered gene from either parent can cause the condition.

Question 5

How rare is Nager acrofacial dysostosis?

Accepted Answer

Nager acrofacial dysostosis is classified as not well established. The estimated prevalence is approximately Unknown. Because rare disease data can be limited, actual numbers may differ from published estimates.

Question 6

How is Nager acrofacial dysostosis diagnosed?

Accepted Answer

Information about diagnosis is currently limited for this condition.

Question 7

Are there treatments for Nager acrofacial dysostosis?

Accepted Answer

Information about treatment is currently limited for this condition.

Question 8

What complications can arise from Nager acrofacial dysostosis?

Accepted Answer

Nager acrofacial dysostosis can lead to complications related to the facial and limb differences. For example, underdeveloped cheekbones and a small jaw may cause difficulties with eating, speaking, or breathing. Additionally, limb differences, especially in the thumbs or big toes, can affect mobility and hand function, making daily tasks more challenging.

Question 9

How does Nager acrofacial dysostosis affect daily life?

Accepted Answer

Living with Nager acrofacial dysostosis can present unique challenges. Individuals may need support with activities that require fine motor skills due to limb differences. Additionally, they might face social challenges related to their facial appearance, which can impact self-esteem and interactions with others.

Question 10

What is the life expectancy for someone with Nager acrofacial dysostosis?

Accepted Answer

Information about life expectancy for individuals with Nager acrofacial dysostosis is currently limited. The condition's impact on life expectancy can vary based on the severity of symptoms and any complications that may arise. Regular medical care and support can help manage the condition and improve quality of life.

Question 11

Are there specialists who can help manage Nager acrofacial dysostosis?

Accepted Answer

Yes, individuals with Nager acrofacial dysostosis may benefit from seeing various specialists. These can include geneticists, orthopedic surgeons, and speech therapists, depending on the specific needs and symptoms. Working with a team of healthcare providers can help address the challenges associated with this condition.

Organ System	Phenotype Count	Example Features
Arms and legs	8	Toe syndactyly, Foot oligodactyly, Overlapping toe
Head and neck	8	Cleft palate, Microcephaly, Cleft upper lip
Bones and joints	5	Sideways curvature of the spine (scoliosis), Temporomandibular joint ankylosis, Skeletal dysplasia
Brain and nerves	4	Hydrocephalus, Intellectual disability, Global developmental delay
Ears	2	Hearing loss (hearing impairment), Conductive hearing impairment
Eyes	2	Strabismus, Ptosis
Skin	2	Urticaria, Preauricular skin tag
Heart and blood vessels	2	Ventricular septal defect, Mitral valve prolapse
Growth and development	1	Short stature
Kidneys and urinary system	1	Unilateral renal agenesis
Digestive system	1	Gastroschisis
Pregnancy and birth	1	Congenital diaphragmatic hernia
Lungs and breathing	1	Difficulty breathing (respiratory insufficiency)

Research Type	Count	% of Total
Laboratory research	6	50%
Patient case studies	3	25%
Research summaries	2	17%
Disease patterns and progression	1	8%

Kisho

Nager acrofacial dysostosis

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OMIM

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Questions for Your Care Team

FAQ

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Nager acrofacial dysostosis

Overview

Clinical Presentation

Medical References

External Resources

OMIM

Orphanet

GARD

Related Diseases

Questions for Your Care Team

Questions for Your Care Team

FAQ

Frequently Asked Questions

What is Nager acrofacial dysostosis?

What are the symptoms of Nager acrofacial dysostosis?

What causes Nager acrofacial dysostosis?

How is Nager acrofacial dysostosis inherited?

How rare is Nager acrofacial dysostosis?

How is Nager acrofacial dysostosis diagnosed?

Are there treatments for Nager acrofacial dysostosis?

What complications can arise from Nager acrofacial dysostosis?

How does Nager acrofacial dysostosis affect daily life?

What is the life expectancy for someone with Nager acrofacial dysostosis?

Are there specialists who can help manage Nager acrofacial dysostosis?

Explore clinical features

Genetic Landscape

Diagnosis

Prognosis

Research Landscape

Recent Publications