Anterior skeletal anatomy
Anterior skeletal anatomy

Acrodysostosis

Definition:
A deformity of the bones and skeleton usually associated with mental retardation.

Alternative Names:
Arkless-Graham; Acrodysplasia; Maroteaux-Malamut

Causes, incidence, and risk factors:

Acrodysostosis is an inherited disease, but the specific gene is unknown at this time. It is inherited in a dominant fashion (no generation skipping), and both sexes are affected. The disorder tends to occur with older parental age.

Symptoms:
  • mild to moderate growth deficiency
  • mental deficiency in approximately 80% of affected children
  • short head, measured front to back (brachycephaly)
  • small, broad, upturned nose with flat nasal bridge
  • protruding jaw
  • frequent middle ear infections
  • short arms and legs with deformities of the hands and feet
  • may have other abnormalities of the skin, genitals, teeth, and skeleton (sometimes)
  • 2/3 of patients have hearing deficit
Signs and tests:

Examination of the infant confirms the symptoms and signs of this disorder.

In the first months of life X-rays may show spotty calcium deposits (stippling) in bones.

Treatment:

There is no treatment or cure for this syndrome. The child should be followed by a medical professional, and referral to a geneticist (specialist in inherited diseases) should be recommended.

Expectations (prognosis):

Problems are relative to the degree of skeletal involvement and mental retardation. In general, patients do relatively well.

Complications:
  • carpal tunnel syndrome
  • arthritis
  • progressive limitation of range of movement of spine, elbows, and hands may occur
Calling your health care provider:

Call if your child seems to be growing or developing slowly or abnormally, or if you notice physical abnormalities in your infant.

Prevention:

There are no specific preventive measures for acrodysostosis. Consultation with an orthopedist and podiatrist may prevent progression of skeletal problems by appropriate braces, shoes, and early surgery.


Review Date: 5/30/2001
Reviewed By: David G. Brooks, M.D., Ph.D., Division of Medical Genetics, University of Pennsylvania Medical Center, Philadelphia, PA. Review provided by VeriMed Healthcare Network.
A.D.A.M., Inc. is accredited by URAC, also known as the American Accreditation HealthCare Commission (www.urac.org). URAC's accreditation program is the first of its kind, requiring compliance with 53 standards of quality and accountability, verified by independent audit. A.D.A.M. is among the first to achieve this important distinction for online health information and services. A.D.A.M. is also a founding member of Hi-Ethics (www.hiethics.com) and subscribes to the principles of the Health on the Net Foundation (www.hon.ch).

The information provided herein should not be used during any medical emergency or for the diagnosis or treatment of any medical condition. A licensed physician should be consulted for diagnosis and treatment of any and all medical conditions. Call 911 for all medical emergencies. Links to other sites are provided for information only -- they do not constitute endorsements of those other sites. Copyright 2003 A.D.A.M., Inc. Any duplication or distribution of the information contained herein is strictly prohibited.