MELANOMA COM METÁSTASE EM LINFONODO EM CÃO

Núbia Elisa Montenegro  Lima; Andressa Francisca Silva  Nogueira; Andriely De Almeida  Pereira; Raíssa Menêses Da Silva De  Miranda; Fábio André Pinheiro De  Araújo

doi:10.51161/rems/1856

MELANOMA COM METÁSTASE EM LINFONODO EM CÃO

Autores

Núbia Elisa Montenegro Lima
Andressa Francisca Silva Nogueira
Andriely De Almeida Pereira
Raíssa Menêses Da Silva De Miranda
Fábio André Pinheiro De Araújo

DOI:

https://doi.org/10.51161/rems/1856

Palavras-chave:

CANINO, DIAGNÓSTICO, MELANINA, TUMOR

Resumo

Introdução: O melanoma é um tipo de neoplasia comum em cães, frequentemente encontrado na pele, membros e dígitos. Mais da metade dos casos que acometem os dígitos são malignos e possuem prognóstico desfavorável pela rápida infiltração, chances de recidiva e metástase nos linfonodos da região. Objetivo: Relatar um caso de melanoma com metástase em linfonodo em um cão, diagnosticado no exame citológico. Material e métodos: Foi atendido na Clínica Veterinária Universitária da Universidade Federal do Tocantins, em Araguaína – TO, um cão, macho, adulto, sem raça definida, apresentando nódulo irregular, de consistência firme, aderido, coloração enegrecida, com lesão ulcerativa, exsudativa e sangrenta em dígito do membro pélvico esquerdo, linfonodo poplíteo esquerdo aumentado e nódulo localizado acima desse. Foi realizado exame ultrassonográfico da região de tíbia/fíbula, articulação do tarso, metatarso, falanges e linfonodo poplíteo esquerdo, e citologia do linfonodo e nódulos, sendo utilizada a técnica da punção por agulha fina (PAF). Resultados: À ultrassonografia identificou-se alterações periosteais, aumento amorfo de volume e opacidade em topografia de coxim, e aumento acentuado em topografia de linfonodo poplíteo associado à perda de definição e contorno, e aumento de opacidade, sendo sugestivo de metástase em linfonodo. No exame citológico do linfonodo identificou-se células redondas, algumas fortemente coradas, acompanhadas de estruturas granulares livres, compatíveis com linfócitos e corpúsculos linfogranulares. Havia também grupos de células redondas, invidualizadas, com menor relação núcleo:citoplasma, contendo grânulos enegrecidos, compatíveis com melanócitos. Nas preparações do nódulo localizado acima do linfonodo haviam células redondas, com moderada relação N:C, grânulos enegrecidos intracelular e livres no material, compatíveis com melanócitos. Ambas as análises foram sugestivas de metástase de melanoma. No exame citológico da lesão, os esfregaços apresentavam células redondas à alongadas, grandes, com citoplasma escasso à abundante, contendo grânulos marrons e núcleo grande, sugerindo melanoma. O tratamento indicado foi a amputação parcial do membro acometido acompanhada da retirada do linfonodo sentinela e o nódulo adjacente. Conclusão: A citologia mostrou-se um método eficiente no diagnóstico do melanoma e de sua metástase em linfonodo, podendo ser um exame recomendado para um diagnóstico rápido e preciso.

Publicado

2021-09-03

Como Citar

Lima, N. E. M. ., Nogueira, A. F. S. ., Pereira, A. D. A. ., Miranda, R. M. D. S. D., & Araújo, F. A. P. D. . (2021). MELANOMA COM METÁSTASE EM LINFONODO EM CÃO. Revista Multidisciplinar Em Saúde, 2(3), 42. https://doi.org/10.51161/rems/1856

Baixar Citação

Edição

v. 2 n. 3 (2021)

Seção

I Congresso On-line Nacional de Clínica Veterinária de Pequenos Animais

Licença

Este trabalho está licenciado sob uma licença Creative Commons Attribution 4.0 International License.

O conteúdo desta revista foi migrado para https://editoraintegrar.com.br

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