Ringed hair disease
Synonyms: Pili annulati
A rare isolated benign hair shaft abnormality usually presenting after the age of 2 and affecting the hair of the scalp or very rarely beard axillary or pubic hair. Hair is characterized by a banded or speckled appearance due to alternating light bands (corresponding to air-filled cavities within the cortex of the affected hair shafts) and dark bands. The bands have a lifelong duration may only be detectable under light microscopy are more apparent in fair-colored hair or with age-related graying and have no effect on hair growth or fragility in the vast majority of cases.
Data from Orphanet are used to provide information on a disease's name, synonym(s), and overview.
Reference: Access aggregated data from Orphanet at Orphadata.
Orphadata: Free access data from Orphanet. © INSERM 1999. Available on http://www.orphadata.org. Data version April 2024
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Ringed hair disease?
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