Características anatomoclínicas dos linfomas caninos na região de Botucatu, São Paulo

Abstract

Estudaram-se as características anatomoclínicas dos linfomas em cães da região de Botucatu, São Paulo. O material utilizado foi colhido de 34 cães portadores de linfoma maligno, dos quais nove eram da raça Pastor-Alemão, nove sem raça definida, cinco da raça Boxer, três animais da raça Dobermann e oito outros cada um de uma raça, 68% deles machos. A idade variou de 1 a 13 anos, com média de 6,2 anos. O estabelecimento do estádio dos linfomas foi baseado nos critérios estabelecidos pela Organização Mundial de Saúde. No momento do diagnóstico, 32 animais apresentavam-se nos estádios clínicos III, IV ou V. Apenas dois foram enquadrados no estádio II. A forma anatômica mais freqüente foi a multicêntrica, diagnosticada em 31 animais. A forma tímica, diagnosticada em dois animais, e a digestiva, em um animal, foram as outras formas anatômicas encontradas.

Epidemiological, clinical and immunohistochemical aspects of canine lymphoma in the region of Porto Alegre, Brazil

“…Some studies have demonstrated that the mediastinal form is the second most frequently anatomical form in dogs, occurring in 6 to 10% of the cases (Sequeira et al 1999, Cardoso et al 2003, but this form was not observed in the present study. The cutaneous form represented 7% of all lymphomas diagnosed in dogs in this study; other studies have found variability in the frequency of this type, with values ranging from 1.7% to 12.3% in other countries (Gavazza et al 2008, Ponce et al 2010 and in other Brazilian studies (Sequeira et al 1999, Cardoso et al 2003, Fighera et al 2006. The intestinal and splenic forms occurred once each in this study and are considered uncommon in dogs (Gavazza et al 2008).…”

“…These data are consistent with results of other studies worldwide. The multicentric form, reported to be the most common anatomical form of lymphoma in dogs and occurring in 68 to 91% of dogs with lymphoma (Sequeira et al 1999, Cardoso et al 2003, Ponce et al 2010, occurred in 87% of cases, similar to another study perfomed in Brazil, were the multicentric form occurred in 93% of the dogs (Fighera et al 2006). Some studies have demonstrated that the mediastinal form is the second most frequently anatomical form in dogs, occurring in 6 to 10% of the cases (Sequeira et al 1999, Cardoso et al 2003, but this form was not observed in the present study.…”

“…The multicentric form, reported to be the most common anatomical form of lymphoma in dogs and occurring in 68 to 91% of dogs with lymphoma (Sequeira et al 1999, Cardoso et al 2003, Ponce et al 2010, occurred in 87% of cases, similar to another study perfomed in Brazil, were the multicentric form occurred in 93% of the dogs (Fighera et al 2006). Some studies have demonstrated that the mediastinal form is the second most frequently anatomical form in dogs, occurring in 6 to 10% of the cases (Sequeira et al 1999, Cardoso et al 2003, but this form was not observed in the present study. The cutaneous form represented 7% of all lymphomas diagnosed in dogs in this study; other studies have found variability in the frequency of this type, with values ranging from 1.7% to 12.3% in other countries (Gavazza et al 2008, Ponce et al 2010 and in other Brazilian studies (Sequeira et al 1999, Cardoso et al 2003, Fighera et al 2006.…”

“…It is known that lymphomas affect dogs of all ages, predominantly those of middle age (Teske 1994). Studies have documented mean ages ranging from 6.2 to 8.9 years in dogs with lymphoma (Dorn et al 1967, Sequeira et al 1999, Dobson et al 2001). Age-specific incidence rates calculated in the USA included 1.5∕100,000 in dogs less than one year old and more than 80∕100,000 in dogs 10 years old (Dorn et al 1967).…”

Linfoma canino: clínica, hematologia e tratamento com o protocolo de Madison-Wisconsin

“…O fato dos proprietários não identificarem os sinais clínicos no início da doença poderia explicar os estágios mais avançados (ROSENTHAL, 1990;SEQUEIRA et al, 1999) e a presença de sinais sistêmicos do linfoma no diagnóstico. Deve-se considerar, também, que esse fato é mais acentuado no Brasil, em comparação com a Europa e os Estados Unidos.…”