Skin neoplasms of dogs in Sydney

Rothwell, T.L.W.; Howlett, C. R.; Middleton, Deborah; Griffiths, David; Duff, B. C.

doi:10.1111/j.1751-0813.1987.tb09673.x

Cited by 93 publications

(98 citation statements)

References 6 publications

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“…In our investigation, with the help of antibodies "LP34" (negative reaction), one melanocytoma, which had a similar morphology to melanoacanthoma, was confirmed. The majority of researchers reported that canine melanocytic tumors were common and accounted for from 5% to 7% of all canine skin tumors (6,16,26). The lower prevalence of melanocytic tumors in our investigation (2.0%) might have been influenced by the fact that histologically identified tumors were classified as other tumors of similar morphology.…”

Section: Resultscontrasting

confidence: 49%

Histological and immunohistochemical practical studies of canine cutaneous tumors

Šimkus¹,

Petkevičius²,

Pridotkas³

et al. 2016

Medycyna Weterynaryjna

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Section: Resultscontrasting

confidence: 49%

Histological and immunohistochemical practical studies of canine cutaneous tumors

Šimkus¹,

Petkevičius²,

Pridotkas³

et al. 2016

Medycyna Weterynaryjna

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“…The MCTs were the most commonly observed but in different proportions, 51.2% (88/172) by IHC versus 62.2% (107/172) by histology. The high prevalence of MCTs was expected because this neoplasm represents 7% to 21% of all skin tumours (Rothwell et al 1987, Yager & Wilcock 1994. The frequency of CL diagnosed by IHC was 1.8 times higher (21.5%, 37/172) compared to histology (12.2%, 21/172).…”

Section: Discussionmentioning

confidence: 99%

“…MCTs are one of the most common neoplasms in dogs, comprising 7% to 21% of all skin tumours (Rothwell et al 1987, Yager & Wilcock 1994. These tumours are routinely graded for malignancy, based on histomorphological characteristics (Patnaik et al 1984).…”

Section: Introductionmentioning

confidence: 99%

Histomorphological and immunohistochemical characterization of 172 cutaneous round cell tumours in dogs

Araújo

Preis

Lavalle³

et al. 2012

Pesq. Vet. Bras.

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Pesq. Vet. , cytokeratin, vimentin and E-cadherin) on formalin-ϐixed, parafϐin-embedded sections of canine cutaneous round cell tumours. Neoplastic tumours were diagnosed by histology and histochemical stains and included 107 mast cell tumours, 31 cutaneous histiocytomas, two localized histiocytic sarcomas, 21 cutaneous lymphomas, three plasma cell tumours, one transmissible venereal tumour and seven unclassiϐied round cell tumours. The histologic diagnosis was modiϐied in 39.5% of the total 172 neoplasms. The staining for CD45 and Ecadherin were variable, and therefore, the ϐinal diagnoses of cutaneous histiocytoma and localized histiocytic sarcoma were made based on histology in association with negative results for CD3, CD79a, CD117 and cytokeratin. The cellular origin of unclassiϐied round cell tumours was deϐined in all cases. Cutaneous B-cell lymphoma and plasma cell tumours were CD79a-positive and could be distinguished from each other by the morphological characteristics. Mast cell tumours and T cell lymphoma were CD117 and CD3 positive, respectively. The positive staining for vimentin and the negative staining for CD3, CD79a, CD117 and cytokeratin favoured the diagnosis of transmissible venereal tumours. Thus, the ϐinal diagnosis of cutaneous round cell tumours should be based on the interpretation of immunohistochemical results together with the cellular morphology observed by histology. Therefore, more studies to optimize the speciϐic markers in formalin-ϐixed, parafϐin-embedded tissues (especially for histiocytes) are required for deϐinitive diagnosis of round cell tumours in dogs. las redondas em cães. Os tumores foram diagnosticados usando-se a histopatologia e a marcação imuno-histoquí-mica. Foram incluídos 107 mastocitomas, 31 histiocitomas cutâneos, 2 sarcomas histiocíticos localizados, 21 linfomas cutâneos, 3 plasmocitomas, 1 tumor venéreo transmissí-vel e 7 tumores de células redondas não classiϐicados. O diagnóstico histológico foi modiϐicado em 39,5% do total de 172 neoplasias. A marcação do anticorpo CD45 e E--caderina foi variável e, nesse sentido, o diagnóstico ϐinal de histiocitoma cutâneo e sarcoma histiocítico localizado foi baseado na histologia em associação com os resultados negativos para CD3, CD79a, CD117 e citoqueratina. A origem celular dos tumores de células redondas não classiϐicados foi deϐinida em todos os casos. foram distinguidos entre si pelas características morfológi-cas. Marcação positiva para vimentina e negativa para CD3, CD79a, CD117 e citoqueratina favoreceram o diagnóstico dos tumores venereos transmissíveis. Assim, o diagnósti-co ϐinal dos tumores de células redondas foram baseados na interpretação dos resultados da imuno-histoquímica em conjunto com a avaliação das características morfoló-gicas observadas na histologia. Finalmente, mais estudos em relação à padronização de marcadores especíϐicos para tecidos paraϐinizados (especialmente para histiócitos) são necessários para o diagnóstico deϐinitivo das neoplasias de células redondas em cães.TERMOS DE INDEXAÇÃO...

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“…Os neoplasmas cutâneos e subcutâneos são descritos como os mais comuns em cães, representando cerca de um terço de todos os tumores encontrados nesta espécie (Rothwell et al 1987, Guzman 2003, Bellei et al 2006. As formas mais comuns de diagnóstico de tumores de pele são as técnicas citopatológica e histopatológica.…”

Section: Introductionunclassified

Comparação entre a citopatologia por biopsia com agulha fina e a histopatologia no diagnóstico das neoplasias cutâneas e subcutâneas de cães

Braz

Brum²,

Leal

et al. 2016

Pesq. Vet. Bras.

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ABSTRACT. - The cutaneous cancers are among the most frequently diagnosed in veterinary medicine before it is sought that the diagnosis of these tumors are fast and effective. In veterinary medicine the use of cytology as a method for diagnosis has increased. Therefore is necessary that studies demonstrate the technical efficiency so that it can be used as only tool. This study aimed to compare the diagnosis made by cytological and histological techniques. Skin and subcutaneous tumors of dogs and their neoplastic type are more easily diagnosed by cytology and are the most prevalent tumors in this animal spécies, attended by two veterinary hospitals in Campo Grande/MS from March 2012 to December 2013. Tumor cell samples were collected by fine needle aspiration and surgical punch of 91 dogs. The cytological results showed an efficacy of 69.69% in relation to histopathology. For differentiating between neoplastic and non-neoplastic growth, the efficiency increases to 91.91%. In order to differentiate benign from malignant tumors, it was possible to find an agreement in the order of 68.13%. The most prevalent tumors were mastocytoma, followed by lipoma, fibrosarcoma and basal cell tumor.

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Skin neoplasms of dogs in Sydney

Cited by 93 publications

References 6 publications

Histological and immunohistochemical practical studies of canine cutaneous tumors

Histological and immunohistochemical practical studies of canine cutaneous tumors

Histomorphological and immunohistochemical characterization of 172 cutaneous round cell tumours in dogs

Comparação entre a citopatologia por biopsia com agulha fina e a histopatologia no diagnóstico das neoplasias cutâneas e subcutâneas de cães

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