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Aarskog syndrome is a very rare genetic disorder caused by a mutation on your child’s X-chromosome. This disorder can affect your child’s stature, facial features, genitalia, muscles, and bones. It primarily affects males. However, females may develop a milder version of the disorder. Symptoms usually become apparent by about age 3. Unfortunately, Aarskog syndrome is a lifelong condition without a cure.
Aarskog syndrome is an inherited disorder. It is caused by a mutation on your faciogenital dysplasia gene, or FGD1 gene, which is linked to your X-chromosome. X-chromosomes are passed down from parents to their children. Males have only one X-chromosome, so male children of a woman who carries the genetic defect will likely have Aarskog syndrome.
Females have two X-chromosomes, so if one of their chromosomes carries the defect, their other chromosome will compensate. So, females may be carriers or may develop a milder form of the disorder.
Two factors can increase your child’s likelihood of having Aarskog syndrome: gender and genetic makeup. If your child is male, he is more likely to develop Aarskog syndrome because he has only one X-chromosome. Also, if you, the mother, carry the defective gene for Aarskog syndrome, your child is at an increased risk of developing the disorder.
Aarskog syndrome affects four major areas of your child’s anatomy: his or her facial features, muscle and bone structure, genitalia, and brain.
If your child has Aarskog syndrome, he or she may have distinctive facial features, including:
Aarskog syndrome can also cause your child’s muscles and bones to be mildly to moderately malformed. Signs of these malformations include:
Atypical genital formation and development are common signs of Aarskog syndrome and often include the following:
Aarskog syndrome can also cause mild to moderate mental deficiencies, including:
Your doctor will examine your child’s facial features to determine whether he or she has Aarskog syndrome. Your doctor will typically conduct a full physical examination and ask about your family’s medical history. If Aarskog syndrome is suspected, your physician may order genetic testing to confirm the presence of mutations on your child’s FGD1 gene. Additionally, head X-rays may help your doctor determine the severity of the malformations caused by Aarskog syndrome.
Unfortunately, there is no cure for Aarskog syndrome. Treatment is typically limited to correcting any abnormalities in your child’s bones, tissue, and teeth. Treatment will probably involve surgical procedures, such as:
Other treatments involve supportive assistance for cognitive and developmental delays. If your child has been diagnosed with attention deficit disorder, you may want to seek psychiatric assistance to help manage the problem. A behavioral specialist or counselor can teach you parenting skills and coping strategies for raising a special-needs child.
Unfortunately, there is no way to prevent Aarskog syndrome. However, women can undergo genetic testing to determine whether they carry a mutated FGD1 gene. If genetic testing reveals that you carry this mutated gene, you can weigh the risks when choosing whether or not to have children.
Written by: Suzanne Allen
Published on: Aug 07, 2012on: Jan 26, 2016
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