File:Vitiligo and Poliosis.jpg|
Depigmentation of sections of skin and hair in 48-year-old man with vitiligo and poliosis.
|Classification and external resources|
|ICD-10||L67.1 (ILDS L67.150)|
Poliosis is the decrease or absence of melanin (or color) in head hair, eyebrows, or eyelashes. It can give rise to a "Mallen Streak" that can be hereditary. Catherine Cookson wrote a novel and later a TV series called The Mallen Streak, where a family had the condition. Sports presenter Dickie Davies and runner Sam Brown were famous for this feature. People with Waardenburg syndrome usually present this symptom, as do 60% of patients with tuberous sclerosis.
This condition can cause white patches (singular or multiple - usually single) on the hair. Most people confuse these white patches as simple birth marks.
- Willacy H. (2010). "Tuberous Sclerosis". PatientPlus. Patient.co.uk. Retrieved May 2, 2011.
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