Cleidocranial dysostosis

Cleidocranial dysplasia; Dento-osseous dysplasia; Marie-Sainton syndrome; CLCD; Dysplasia cleidocranial; Osteodental dysplasia

Definition

Cleidocranial dysostosis is a disorder involving the abnormal development of bones in the skull and collar (clavicle) area.

Causes

Cleidocranial dysostosis is caused by an abnormal gene. It is passed down through families as an autosomal dominant trait. That means you only need to get the abnormal gene from one parent in order for you to inherit the disease.

Cleidocranial dysostosis is a congenital condition, which means it is present from before birth. The condition affects girls and boys equally.

Symptoms

People with cleidocranial dysostosis have a jaw and brow area that sticks out. The middle of their nose (nasal bridge) is wide.

The collar bones may be missing or abnormally developed. This pushes the shoulders together in front of the body.

Primary teeth do not fall out at the expected time. Adult teeth may develop later than normal and an extra set of adult teeth grow in. This causes the teeth to become crooked.

Intelligence level is most often normal.

Other symptoms include:

  • Ability to touch shoulders together in front of body
  • Delayed closure of fontanelles ("soft spots")
  • Loose joints
  • Prominent forehead (frontal bossing)
  • Short forearms
  • Short fingers
  • Short stature
  • Increased risk of getting flat foot, abnormal curvature of spine (scoliosis) and knee deformities
  • High risk of hearing loss due to infections
  • Increased risk of fracture due to decreased bone density

Exams and Tests

The health care provider will take your family history. The provider will do a physical examination and may do series of x-rays to check for:

  • Undergrowth of the collarbone
  • Undergrowth of the shoulder blade
  • Failure of the area in the front of the pelvis bone to close

Treatment

There is no specific treatment for it and management depends on each person's symptoms. Most people with the disease need:

  • Regular dental care
  • Head gear to protect skull bones until they close
  • Ear tubes for frequent ear infections
  • Surgery to correct any bone abnormalities

Support Groups

More information and support for people with cleidocranial dysostosis and their families can be found at:

Outlook (Prognosis)

In most cases, the bone symptoms cause few problems. Appropriate dental care is important.

Possible Complications

Complications include dental problems and shoulder dislocations.

When to Contact a Medical Professional

Contact your provider if you have a:

  • Family history of cleidocranial dysostosis and are planning to have a child.
  • Child with similar symptoms.

Prevention

Genetic counseling is appropriate if a person with a family or personal history of cleidocranial dysostosis is planning to have children. The disease may be diagnosed during pregnancy.

References

Hecht JT, Horton WA, Rodriguez-Buritica D. Disorders involving transcription factors. In: Kliegman RM, St. Geme JW, Blum NJ, Shah SS, Tasker RC, Wilson KM, eds. Nelson Textbook of Pediatrics. 21st ed. Philadelphia, PA: Elsevier; 2020:chap 718.

Jones KL, Jones MC, del Campo M. Osteochondrodysplasia with osteopetrosis. In: Jones KL, Jones MC, del Campo M, eds. Smith's Recognizable Patterns of Human Malformation. 8th ed. Philadelphia, PA: Elsevier; 2022: 558-569.

Lissauer T, Carroll W. Musculoskeletal disorders. In: Lissauer T, Carroll W, eds. Illustrated Textbook of Paediatrics. 6th ed. Philadelphia, PA: Elsevier; 2022:chap 28.

National Center for Advancing Translational Sciences website. Genetic and Rare Diseases Information Center. Cleidocranial dysplasia. rarediseases.info.nih.gov/diseases/6118/cleidocranial-dysplasia. Updated January 2024. Accessed February 22, 2024.

National Institute of Health website. Genetics Home Reference. Cleidocranial dysplasia. ghr.nlm.nih.gov/condition/cleidocranial-dysplasia#sourcesforpage. Updated August 1, 2017. Accessed March 8, 2024.

GO

Review Date: 2/17/2024

Reviewed By: Charles I. Schwartz, MD, FAAP, Clinical Assistant Professor of Pediatrics, Perelman School of Medicine at the University of Pennsylvania, General Pediatrician at PennCare for Kids, Phoenixville, PA. Also reviewed by David C. Dugdale, MD, Medical Director, Brenda Conaway, Editorial Director, and the A.D.A.M. Editorial team.

The information provided herein should not be used during any medical emergency or for the diagnosis or treatment of any medical condition. A licensed medical professional should be consulted for diagnosis and treatment of any and all medical conditions. Links to other sites are provided for information only -- they do not constitute endorsements of those other sites. No warranty of any kind, either expressed or implied, is made as to the accuracy, reliability, timeliness, or correctness of any translations made by a third-party service of the information provided herein into any other language.

© 1997- A.D.A.M., a business unit of Ebix, Inc. Any duplication or distribution of the information contained herein is strictly prohibited.


All content on this site including text, images, graphics, audio, video, data, metadata, and compilations is protected by copyright and other intellectual property laws. You may view the content for personal, noncommercial use. Any other use requires prior written consent from Ebix. You may not copy, reproduce, distribute, transmit, display, publish, reverse-engineer, adapt, modify, store beyond ordinary browser caching, index, mine, scrape, or create derivative works from this content. You may not use automated tools to access or extract content, including to create embeddings, vectors, datasets, or indexes for retrieval systems. Use of any content for training, fine-tuning, calibrating, testing, evaluating, or improving AI systems of any kind is prohibited without express written consent. This includes large language models, machine learning models, neural networks, generative systems, retrieval-augmented systems, and any software that ingests content to produce outputs. Any unauthorized use of the content including AI-related use is a violation of our rights and may result in legal action, damages, and statutory penalties to the fullest extent permitted by law. Ebix reserves the right to enforce its rights through legal, technological, and contractual measures.


BACK
TO
TOP