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Incontinentia pigmenti achromians

Definition

Incontinentia pigmenti achromians is a rare birth defect that causes unusual patches of light-colored (hypopigmented ) skin and possible neurological and skeletal problems.

Alternative Names

Hypomelanosis of Ito (more commonly used)

Causes

The cause is unknown. It is twice as common in girls than in boys.

Symptoms

  • (strabismus)Crossed eyes
  • Hearing problems
  • Increased body hair (hirsutism )
  • Scoliosis
  • Seizures
  • Streaked, whirled or mottled patchs of skin on the arms, legs, and middle of the body
  • Varying degrees of intellectual disability incluiding autism and learning disability 

Exams and tests

A Wood's lamp examination of the skin lesions may help confirm the diagnosis. Your doctor may also recommend chromosome analysis or a further medical workup to discover any related medical problems.

Treatment

There is no treatment for the hypopigmentation. Treatment consists of treating the symptoms. Cosmetics or clothing may be used to cover the hypopigmented spots if desired. Seizures, scoliosis, and other problems are treated as necessary.

Support Groups

Outlook (Prognosis)

What happens depends on the type and severity of symptoms that develop. In most cases, the skin pigment eventually returns to normal.

Possible Complications

  • Discomfort and walking problems due to scoliosis
  • Emotional distress related to the physical appearance
  • Intellectual disability
  • Seizures and resulting possible injury

When to Contact a Medical Professional

Call your health care provider if your child exhibits an unusual pattern of the color of the skin.

Prevention

References

James WD, Berger TG, Elston DM, . 11th ed. Philadelphia, Pa: Elsevier Saunders; 2011: chap 27.

Moss C. Mosaicism and linear lesions. In: Bolognia JL, Jorizzo JL, Schaffer JV, eds.: . 3rd ed. Philadelphia, Pa: Elsevier Saunders; 2012:chap 61.

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