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Kearns Sayre syndrome initially presenting as hypomelanosis of Ito
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Editor,—Hypomelanosis of Ito (HI) is a neurocutaneous syndrome characterised by hypopigmented skin lesions along Blaschko’s lines, frequently associated with neurological, musculoskeletal, ocular, and other extracutaneous manifestations. Chromosomal mosaicism in skin fibroblasts is responsible for approximately 30% of the cases.1 Kearns Sayre syndrome (KSS) is a mitochondrial multisystem disorder, usually associated with a single large scale muscle mtDNA deletion. Its main clinical characteristics are progressive external ophthalmoplegia and pigmentary retinopathy but virtually all organ systems can be involved.2
We report a 13 year old boy who, at …