Search Encyclopedia:    
List of Topics Print This Page
 

Hypomelanosis of Ito


Definition:

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

Alternative Names:

Incontinentia pigmenti achromians

Causes:

Health care providers do not know the exact cause, but they believe it is a problem with genes. It is twice as common in girls than in boys.

Symptoms:

Symptoms may include:

  • Crossed eyes (strabismus)
  • Hearing problems
  • Increased body hair (hirsutism)
  • Scoliosis
  • Seizures
  • Streaked, whirled or mottled patches of skin on the arms, legs, and middle of the body
  • Intellectual disability including autism spectrum and learning disability
  • Mouth or tooth problems
Exams and Tests:

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

Treatment:

There is no treatment for the skin patches. Cosmetics or clothing may be used to cover the patches. Seizures, scoliosis, and other problems are treated as needed.

Outlook (Prognosis):

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

Possible Complications:

Problems that may result from this condition include:

  • Discomfort and walking problems due to scoliosis
  • Emotional distress related to the physical appearance
  • Intellectual disability
  • Injury from seizures
When to Contact a Medical Professional:

Call your provider if your child has an unusual pattern of the color of the skin.

References:

Habif TP. Light-related diseases and disorders of pigmentaiton. In: Habif TP, ed. Clinical Dermatology: A Color Guide to Diagnosis and Therapy. 6th ed. Philadelphia, PA: Elsevier Mosby; 2016:chap 19.

Patterson JW. Disorders of pigmentation. In: Patterson JW, ed. Weedon's Skin Pathology. 4th ed. Philadelphia, PA: Elsevier; 2015:chap 10.


Review Date: 4/14/2015
Reviewed By: Kevin Berman, MD, PhD, Atlanta Center for Dermatologic Disease, Atlanta, GA. Review provided by VeriMed Healthcare Network. Also reviewed by David Zieve, MD, MHA, Isla Ogilvie, PhD, and the A.D.A.M. Editorial team.

The information provided herein should not be used during any medical emergency or for the diagnosis or treatment of any medical condition. A licensed physician should be consulted for diagnosis and treatment of any and all medical conditions. Call 911 for all medical emergencies. Links to other sites are provided for information only -- they do not constitute endorsements of those other sites. Copyright 2002 A.D.A.M., Inc. Any duplication or distribution of the information contained herein is strictly prohibited.

   View History
  Hypomelanosis of Ito

   
   

 

About UPHS   Contact Us   Site Map   Privacy Statement   Legal Disclaimer   Terms of Use

The University of Pennsylvania Health System, Philadelphia, PA 1-800-789-PENN © 2016, The Trustees of the University of Pennsylvania