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Acrodysostosis

Definition

Acrodysostosis is an extremely rare disorder that is present at birth (congenital). It leads to problems with the bones of the hands, feet, and nose, and intellectual disability.

Alternative Names

Arkless-Graham; Acrodysplasia; Maroteaux-Malamut

Causes, incidence, and risk factors

Most patients with acrodysostosis have no family history of the disease. However, sometimes the condition is passed down from parent to child. Parents with the condition have a 1 in 2 chance of passing the disorder to their children.

There is a slightly greater risk with fathers who are older.

Symptoms

  • Frequent middle ear infections
  • Growth problems, short arms and legs
  • Hearing problems
  • Mental deficiency
  • Unusual looking face

Signs and tests

Your health care provider can usually diagnose this condition with a physical exam.

This may show:

  • Advanced bone age
  • Bone deformities in hands and feet
  • Delays in growth
  • Problems with the skin, genitals, teeth, and skeleton
  • Short arms and legs with small hands and feet
  • Short head, measured front to back (brachycephaly)
  • Short height
  • Small, upturned broad nose with flat bridge
  • Unusual features of the face (short nose, open mouth, jaw that sticks out)
  • Unusual head
  • Wide-spaced eyes (hypertelorism), sometimes with extra skin fold at corner of eye

In the first months of life, x-rays may show spotty calcium deposits, called stippling, in bones (especially the nose). Infants may also have:

  • Abnormally short fingers and toes (brachydactyly)
  • Early growth of bones in the hands and feet
  • Short bones
  • Shortening of the forearm bones near the wrist

Treatment

Treatment depends on the symptoms.

Orthopedic care, early intervention, and special education are recommended.

Support Groups

Expectations (prognosis)

Problems depend on the degree of skeletal involvement and intellectual disability . In general, patients do relatively well.

Complications

Calling your health care provider

Call your health care provider if your infant or child does not seem to be growing or developing properly.

Prevention

Genetic counseling may be helpful.

Encyclopedia content is provided as information only and not intended to replace the advice and instruction from your personal physician.