Orthohyperkeratosis L85.8

Author: Prof. Dr. med. Peter Altmeyer

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Last updated on: 29.10.2020

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Reactive or idiopathic, significant thickening of the stratum corneum with increased proliferation with normal differentiation of the keratinocytes; see parahyperkeratosis below A distinction is made between retention hyperkeratosis (e.g. in vulgar ichthyosis), proliferative hyperkeratosis (e.g. in psoriasis vulgaris, ichthyosis congenita) and acanthokeratolytic hyperkeratosis (e.g. in dyskeratosis follicularis).


Please ask your physician for a reliable diagnosis. This website is only meant as a reference.


Last updated on: 29.10.2020