Scanning electron microscopy of tinea nigra

Detalhes bibliográficos
Autor(a) principal: Guarenti,Isabelle Maffei
Data de Publicação: 2014
Outros Autores: Almeida Jr,Hiram Larangeira de, Leitão,Aline Hatzenberger, Rocha,Nara Moreira, Silva,Ricardo Marques e
Tipo de documento: Relatório
Idioma: eng
Título da fonte: Anais brasileiros de dermatologia (Online)
Texto Completo: http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0365-05962014000200334
Resumo: Tinea nigra is a rare superficial mycosis caused by Hortaea werneckii. This infection presents as asymptomatic brown to black maculae mostly in palmo-plantar regions. We performed scanning electron microscopy of a superficial shaving of a tinea nigra lesion. The examination of the outer surface of the sample showed the epidermis with corneocytes and hyphae and elimination of fungal filaments. The inner surface of the sample showed important aggregation of hyphae among keratinocytes, which formed small fungal colonies. The ultrastructural findings correlated with those of dermoscopic examination - the small fungal aggregations may be the dark spicules seen on dermoscopy - and also allowed to document the mode of dissemination of tinea nigra, showing how hyphae are eliminated on the surface of the lesion.
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spelling Scanning electron microscopy of tinea nigraBacterial infections and mycosesDermatomycosesFungiMycosesMicroscopy, electron, scanningTinea nigra is a rare superficial mycosis caused by Hortaea werneckii. This infection presents as asymptomatic brown to black maculae mostly in palmo-plantar regions. We performed scanning electron microscopy of a superficial shaving of a tinea nigra lesion. The examination of the outer surface of the sample showed the epidermis with corneocytes and hyphae and elimination of fungal filaments. The inner surface of the sample showed important aggregation of hyphae among keratinocytes, which formed small fungal colonies. The ultrastructural findings correlated with those of dermoscopic examination - the small fungal aggregations may be the dark spicules seen on dermoscopy - and also allowed to document the mode of dissemination of tinea nigra, showing how hyphae are eliminated on the surface of the lesion.Sociedade Brasileira de Dermatologia2014-04-01info:eu-repo/semantics/reportinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S0365-05962014000200334Anais Brasileiros de Dermatologia v.89 n.2 2014reponame:Anais brasileiros de dermatologia (Online)instname:Sociedade Brasileira de Dermatologia (SBD)instacron:SBD10.1590/abd1806-4841.20142780info:eu-repo/semantics/openAccessGuarenti,Isabelle MaffeiAlmeida Jr,Hiram Larangeira deLeitão,Aline HatzenbergerRocha,Nara MoreiraSilva,Ricardo Marques eeng2014-06-11T00:00:00Zoai:scielo:S0365-05962014000200334Revistahttp://www.anaisdedermatologia.org.br/https://old.scielo.br/oai/scielo-oai.phpabd@sbd.org.br||revista@sbd.org.br1806-48410365-0596opendoar:2014-06-11T00:00Anais brasileiros de dermatologia (Online) - Sociedade Brasileira de Dermatologia (SBD)false
dc.title.none.fl_str_mv Scanning electron microscopy of tinea nigra
title Scanning electron microscopy of tinea nigra
spellingShingle Scanning electron microscopy of tinea nigra
Guarenti,Isabelle Maffei
Bacterial infections and mycoses
Dermatomycoses
Fungi
Mycoses
Microscopy, electron, scanning
title_short Scanning electron microscopy of tinea nigra
title_full Scanning electron microscopy of tinea nigra
title_fullStr Scanning electron microscopy of tinea nigra
title_full_unstemmed Scanning electron microscopy of tinea nigra
title_sort Scanning electron microscopy of tinea nigra
author Guarenti,Isabelle Maffei
author_facet Guarenti,Isabelle Maffei
Almeida Jr,Hiram Larangeira de
Leitão,Aline Hatzenberger
Rocha,Nara Moreira
Silva,Ricardo Marques e
author_role author
author2 Almeida Jr,Hiram Larangeira de
Leitão,Aline Hatzenberger
Rocha,Nara Moreira
Silva,Ricardo Marques e
author2_role author
author
author
author
dc.contributor.author.fl_str_mv Guarenti,Isabelle Maffei
Almeida Jr,Hiram Larangeira de
Leitão,Aline Hatzenberger
Rocha,Nara Moreira
Silva,Ricardo Marques e
dc.subject.por.fl_str_mv Bacterial infections and mycoses
Dermatomycoses
Fungi
Mycoses
Microscopy, electron, scanning
topic Bacterial infections and mycoses
Dermatomycoses
Fungi
Mycoses
Microscopy, electron, scanning
description Tinea nigra is a rare superficial mycosis caused by Hortaea werneckii. This infection presents as asymptomatic brown to black maculae mostly in palmo-plantar regions. We performed scanning electron microscopy of a superficial shaving of a tinea nigra lesion. The examination of the outer surface of the sample showed the epidermis with corneocytes and hyphae and elimination of fungal filaments. The inner surface of the sample showed important aggregation of hyphae among keratinocytes, which formed small fungal colonies. The ultrastructural findings correlated with those of dermoscopic examination - the small fungal aggregations may be the dark spicules seen on dermoscopy - and also allowed to document the mode of dissemination of tinea nigra, showing how hyphae are eliminated on the surface of the lesion.
publishDate 2014
dc.date.none.fl_str_mv 2014-04-01
dc.type.driver.fl_str_mv info:eu-repo/semantics/report
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
format report
status_str publishedVersion
dc.identifier.uri.fl_str_mv http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0365-05962014000200334
url http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0365-05962014000200334
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv 10.1590/abd1806-4841.20142780
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv text/html
dc.publisher.none.fl_str_mv Sociedade Brasileira de Dermatologia
publisher.none.fl_str_mv Sociedade Brasileira de Dermatologia
dc.source.none.fl_str_mv Anais Brasileiros de Dermatologia v.89 n.2 2014
reponame:Anais brasileiros de dermatologia (Online)
instname:Sociedade Brasileira de Dermatologia (SBD)
instacron:SBD
instname_str Sociedade Brasileira de Dermatologia (SBD)
instacron_str SBD
institution SBD
reponame_str Anais brasileiros de dermatologia (Online)
collection Anais brasileiros de dermatologia (Online)
repository.name.fl_str_mv Anais brasileiros de dermatologia (Online) - Sociedade Brasileira de Dermatologia (SBD)
repository.mail.fl_str_mv abd@sbd.org.br||revista@sbd.org.br
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