Isolated patchy heterochromia with pili annulati features on light and electron microscopy

Lobato‐Berezo, Alejandro; Pesqué, David

doi:10.5826/dpc.1204a204

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2024

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“…Hair heterochromia represents a variant of pigmentary mosaicism that can present in different distributions such as patchy, segmental, diffuse or blaschkoid. 1 In mammals, different proportions and contents of eumelanin (which gives skin and hair appear a black or brown appearance) and pheomelanin (which can make skin and hair appear red and yellow) determine the different colours of hair. The production of melanin is related to a variety of genes, in which the MC1R gene has been proved to be associated with hair colour.…”

Section: Introductionmentioning

confidence: 99%

Zinc deficiency or genetic mutations?—A case report of hair heterochromia in the context of MC1R genetic mutations

Lei,

Yingcai,

Jianbo

2024

Aust J Dermatology

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Hair heterochromia may be caused by different mechanisms. At clinical work, we found a Chinese boy whose hair colour gradually turned to red. We record the diagnosis and treatment process and follow‐up situation, finally find that altered hair colour phenotype is due to MC1R genetic mutations, rather than zinc deficiency. This rarely red hair colour phenotype improve our understanding of hair heterochromia caused by genetic mutations.

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Section: Introductionmentioning

confidence: 99%