Acanthosis nigricans benigna L83

Authors: Prof. Dr. med. Peter Altmeyer, Prof. Dr. med. Martina Bacharach-Buhles

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Last updated on: 29.10.2020

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acanthosis nigricans juvenilis; pseudoacanthosis nigricans

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Name for all benign non-paraneoplastic forms of acanthosis nigricans. See classification under Acanthosis nigricans.

Clinical features
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There are extensive, mostly blurred, dirty-brown spots that change into very flat plaques. Typical is a leathery, in the intertriginous zones (axillae, groin regions, also neck and neck regions) also verrucous surface of the plaques. Complaints are generally not present. In the intertriginous areas there is a danger of microbial colonization, which causes an unpleasant mouldy foetus.

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