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Aarskog syndrome

Definition

Aarskog syndrome is an inherited disease that affects a person's height, muscles, skeleton, genitals, and appearance of the face. Inherited means that it is passed down through families.

Causes

Aarskog syndrome is a genetic disorder. It affects mainly males, but females may have a milder form. The condition is caused by changes (mutations) in a gene called "faciogenital dysplasia" (FGDY1).

Symptoms

• Belly button that sticks out
• Bulge in the groin or scrotum (inguinal hernia)
• Delayed sexual maturation
• Delayed teeth
• Downward palpebral slant to eyes
• Hairline with a "widow's peak"
• Mildly sunken chest (pectus excavatum)
• Mild to moderate mental problems
• Mild to moderate short stature which may not be obvious until the child is 1 - 3 years old
• Poorly developed midportion of the face
• Rounded face
• "Shawl" scrotum, testicles that have not come down (undescended)
• Short fingers and toes with mild webbing
• Single crease in palm of hand
• Small, broad hands and feet with short fingers and curved-in 5th finger
• Small nose with nostrils tipped forward
• Top portion of the ear folded over slightly
• Wide groove above the upper lip, crease below the lower lip
• Wide-set eyes with droopy eyelids

Treatment

Moving the teeth (orthodontic treatment) may be done for some of the abnormal facial features.

Prognosis

Some people may have mild degrees of mental slowness, but affected children usually have good social skills. Some males may have problems with fertility.

Prevention

Prenatal testing may be available for those with a family history of the condition or known mutation of the gene.