Color dilution alopecia: case report
Autor(a) principal: | |
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Data de Publicação: | 2018 |
Outros Autores: | , , , , , , |
Tipo de documento: | Artigo |
Idioma: | por |
Título da fonte: | Brazilian Journal of Veterinary Medicine |
Texto Completo: | https://rbmv.org/BJVM/article/view/937 |
Resumo: | Color dilution alopecia is characterized by follicular dysplasia that leads to alopecia characterized by an abnormal distribution of melanin in the hair. There are few reports of mixed breed dogs and the diagnosis can be reached based on trichogramma and confirmed by histopathological evaluation. The aim of this study was to report a case of Color dilution alopecia in a mixed breed dog treated at the Veterinary Hospital of the Federal Rural University of Rio de Janeiro that had generalized hypotrichosis. Trichogramma was performed and was observed the presence of melanin aggregates along the hair shafts. Histopathological evaluation showed the presence of atypical macromelanossomas and melanin plugs into follicular structures scattered throughout the superficial dermis and deep, mild acanthosis with hyperkeratosis and absence of many follicles. The changes observed were consistent with color diluted alopecia. It is concluded that in order to obtain the diagnosis of color diluted alopecia, clinical history is important as well as a well-done clinical and dermatological examination, with the exclusion of possible diagnoses and the skin histopathology, which is an important tool for diagnosis |
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Color dilution alopecia: case reportAlopecia por diluição da cor: relato de casoCão, Alopecia, Displasia follicularDog, Alopecia, Follicular DysplasiaColor dilution alopecia is characterized by follicular dysplasia that leads to alopecia characterized by an abnormal distribution of melanin in the hair. There are few reports of mixed breed dogs and the diagnosis can be reached based on trichogramma and confirmed by histopathological evaluation. The aim of this study was to report a case of Color dilution alopecia in a mixed breed dog treated at the Veterinary Hospital of the Federal Rural University of Rio de Janeiro that had generalized hypotrichosis. Trichogramma was performed and was observed the presence of melanin aggregates along the hair shafts. Histopathological evaluation showed the presence of atypical macromelanossomas and melanin plugs into follicular structures scattered throughout the superficial dermis and deep, mild acanthosis with hyperkeratosis and absence of many follicles. The changes observed were consistent with color diluted alopecia. It is concluded that in order to obtain the diagnosis of color diluted alopecia, clinical history is important as well as a well-done clinical and dermatological examination, with the exclusion of possible diagnoses and the skin histopathology, which is an important tool for diagnosisA alopecia por diluição da cor é caracterizada por displasia folicular que leva à alopecia caracterizada pela distribuição anormal de melanina no pelo. Há poucos relatos em cães sem raça definida e o diagnóstico pode ser obtido baseado no tricograma e confirmado através de avaliação histopatológica. O objetivo deste estudo foi relatar um caso de alopecia por diluição da cor em um cão sem raça definida atendido no Hospital Veterinário da Universidade Federal Rural do Rio de Janeiro que apresentava hipotricose generalizada. Foi realizado tricograma e observou-se a presença de agregados de melanina ao longo das hastes pilosas. O exame histopatológico apresentou macromelanossomas atípicos e plugues de melanina em estruturas foliculares espalhadas por toda a derme superficial e profunda, ligeira acantose com hiperqueratose e ausência de muitos folículos. As alterações observadas foram consistentes com alopecia por diluição da cor. Conclui-se que para se obter o diagnóstico da alopecia por diluição da cor é importante o histórico, um exame clínico e dermatológico bem feito, com a exclusão de possíveis diagnósticos diferencias além da histopatologia de pele que é uma importante ferramenta para auxiliar no diagnóstico. Sociedade de Medicina Veterinária do Estado do Rio de Janeiro.2018-05-15info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttps://rbmv.org/BJVM/article/view/93710.29374/2527-2179.bjvm014117Brazilian Journal of Veterinary Medicine; Vol. 39 No. 3 (2017); 198-202Revista Brasileira de Medicina Veterinária; v. 39 n. 3 (2017); 198-2022527-21790100-2430reponame:Brazilian Journal of Veterinary Medicineinstname:Sociedade de Medicina Veterinária do Estado do Rio de Janeiro (SOMVERJ)instacron:SBMVporhttps://rbmv.org/BJVM/article/view/937/766Lopes, Natália LoresPeixoto, André de PaulaCosta, Thiago dos SantosPisani, Rafaela Bruno FariasMedeiros, Carolina Moraes Barbalho TrivisolRamadinha, Regina Helena RuckertMascarenhas, Mariana BezerraFernandes, Julio Israelinfo:eu-repo/semantics/openAccess2021-03-12T18:05:37Zoai:ojs.rbmv.org:article/937Revistahttps://rbmv.org/BJVMONGhttps://rbmv.org/BJVM/oaicontato.rbmv@gmail.com2527-21790100-2430opendoar:2021-03-12T18:05:37Brazilian Journal of Veterinary Medicine - Sociedade de Medicina Veterinária do Estado do Rio de Janeiro (SOMVERJ)false |
dc.title.none.fl_str_mv |
Color dilution alopecia: case report Alopecia por diluição da cor: relato de caso |
title |
Color dilution alopecia: case report |
spellingShingle |
Color dilution alopecia: case report Lopes, Natália Lores Cão, Alopecia, Displasia follicular Dog, Alopecia, Follicular Dysplasia |
title_short |
Color dilution alopecia: case report |
title_full |
Color dilution alopecia: case report |
title_fullStr |
Color dilution alopecia: case report |
title_full_unstemmed |
Color dilution alopecia: case report |
title_sort |
Color dilution alopecia: case report |
author |
Lopes, Natália Lores |
author_facet |
Lopes, Natália Lores Peixoto, André de Paula Costa, Thiago dos Santos Pisani, Rafaela Bruno Farias Medeiros, Carolina Moraes Barbalho Trivisol Ramadinha, Regina Helena Ruckert Mascarenhas, Mariana Bezerra Fernandes, Julio Israel |
author_role |
author |
author2 |
Peixoto, André de Paula Costa, Thiago dos Santos Pisani, Rafaela Bruno Farias Medeiros, Carolina Moraes Barbalho Trivisol Ramadinha, Regina Helena Ruckert Mascarenhas, Mariana Bezerra Fernandes, Julio Israel |
author2_role |
author author author author author author author |
dc.contributor.author.fl_str_mv |
Lopes, Natália Lores Peixoto, André de Paula Costa, Thiago dos Santos Pisani, Rafaela Bruno Farias Medeiros, Carolina Moraes Barbalho Trivisol Ramadinha, Regina Helena Ruckert Mascarenhas, Mariana Bezerra Fernandes, Julio Israel |
dc.subject.por.fl_str_mv |
Cão, Alopecia, Displasia follicular Dog, Alopecia, Follicular Dysplasia |
topic |
Cão, Alopecia, Displasia follicular Dog, Alopecia, Follicular Dysplasia |
description |
Color dilution alopecia is characterized by follicular dysplasia that leads to alopecia characterized by an abnormal distribution of melanin in the hair. There are few reports of mixed breed dogs and the diagnosis can be reached based on trichogramma and confirmed by histopathological evaluation. The aim of this study was to report a case of Color dilution alopecia in a mixed breed dog treated at the Veterinary Hospital of the Federal Rural University of Rio de Janeiro that had generalized hypotrichosis. Trichogramma was performed and was observed the presence of melanin aggregates along the hair shafts. Histopathological evaluation showed the presence of atypical macromelanossomas and melanin plugs into follicular structures scattered throughout the superficial dermis and deep, mild acanthosis with hyperkeratosis and absence of many follicles. The changes observed were consistent with color diluted alopecia. It is concluded that in order to obtain the diagnosis of color diluted alopecia, clinical history is important as well as a well-done clinical and dermatological examination, with the exclusion of possible diagnoses and the skin histopathology, which is an important tool for diagnosis |
publishDate |
2018 |
dc.date.none.fl_str_mv |
2018-05-15 |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
https://rbmv.org/BJVM/article/view/937 10.29374/2527-2179.bjvm014117 |
url |
https://rbmv.org/BJVM/article/view/937 |
identifier_str_mv |
10.29374/2527-2179.bjvm014117 |
dc.language.iso.fl_str_mv |
por |
language |
por |
dc.relation.none.fl_str_mv |
https://rbmv.org/BJVM/article/view/937/766 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
application/pdf |
dc.publisher.none.fl_str_mv |
Sociedade de Medicina Veterinária do Estado do Rio de Janeiro. |
publisher.none.fl_str_mv |
Sociedade de Medicina Veterinária do Estado do Rio de Janeiro. |
dc.source.none.fl_str_mv |
Brazilian Journal of Veterinary Medicine; Vol. 39 No. 3 (2017); 198-202 Revista Brasileira de Medicina Veterinária; v. 39 n. 3 (2017); 198-202 2527-2179 0100-2430 reponame:Brazilian Journal of Veterinary Medicine instname:Sociedade de Medicina Veterinária do Estado do Rio de Janeiro (SOMVERJ) instacron:SBMV |
instname_str |
Sociedade de Medicina Veterinária do Estado do Rio de Janeiro (SOMVERJ) |
instacron_str |
SBMV |
institution |
SBMV |
reponame_str |
Brazilian Journal of Veterinary Medicine |
collection |
Brazilian Journal of Veterinary Medicine |
repository.name.fl_str_mv |
Brazilian Journal of Veterinary Medicine - Sociedade de Medicina Veterinária do Estado do Rio de Janeiro (SOMVERJ) |
repository.mail.fl_str_mv |
contato.rbmv@gmail.com |
_version_ |
1798313110169190400 |