Aarskog Syndrome

(Aarskog-Scott Syndrome; Faciodigitogenital Dysplasia or Syndrome; Faciogenital Dysplasia; Shawl Scrotum Syndrome)

Definition

Aarskog syndrome is a rare genetic disorder. It causes short stature and specific facial, limb, and genital features.

Causes

Aarskog syndrome is an inherited disorder. It is caused by a gene mutation in the faciogenital dysplasia 1 gene (FDG1) on the X chromosome. It is passed from mothers to male children. Female children can be affected by a milder form of the disease.

Risk Factors

Those at risk of inheriting Aarskog syndrome are male children of mothers who carry the gene for it.

Symptoms

The main symptoms of Aarskog syndrome are:
  • Short stature
  • Abnormalities of the head and face, including:
    • Rounded face
    • Wide-set eyes
    • Slightly slanted eyes
    • Drooping eyelids
    • Small nose
    • Front-facing nostrils
    • Underdeveloped mid-portion of the face
    • Wide groove above the upper lip
    • Crease below the lower lip
    • Folding of the top portion of the ear
    • Delay in growing teeth
    • In some cases, cleft lip or palate
Cleft Lip
Cleft lip
Copyright © Nucleus Medical Media, Inc.
Other symptoms may include:
  • A deformed scrotum
  • Undescended testicles
  • Small, wide hands and feet
  • Short fingers and toes
  • Mild webbing of fingers and toes, or crease in palm of hand
  • Mildly sunken chest
  • Navel that sticks out
  • Hyperextension of the knees
  • Intellectual disabilities
Undescended Testicle
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Copyright © Nucleus Medical Media, Inc.

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