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Master's Dissertation
DOI
https://doi.org/10.11606/D.5.2005.tde-06102014-095129
Document
Author
Full name
Bruno de Santana Silva
E-mail
Institute/School/College
Knowledge Area
Date of Defense
Published
São Paulo, 2005
Supervisor
Committee
Festa Neto, Cyro (President)
Barbuto, Jose Alexandre Marzagao
Sanches Junior, Jose Antonio
Title in Portuguese
Infiltrados eosinofílico e linfocítico em carcinoma espinocelular de lábio como fatores prognósticos
Keywords in Portuguese
Carcinoma de células escamosas
Eosinófilos/imunologia
Linfócitos do interstício tumoral
Metástase neoplásica
Neoplasias labiais
Prognóstico
Recidiva
Abstract in Portuguese
O carcinoma espinocelular de lábio (CEC) é uma patologia relativamente freqüente e acomete preferencialmente indivíduos de pele clara e com antecedentes de exposição solar. A localização labial do CEC está associada ao comportamento clínico mais agressivo. Algumas características clínicas e histológicas, como tamanho do tumor, grau de diferenciação, espessura, invasão perineural e perivascular, atuam como fatores prognósticos do CEC de lábio. A presença do infiltrado inflamatório vem sendo associada ao comportamento de diversos tumores, dentre eles o CEC. Esse infiltrado é composto por linfócitos T, B, células natural killer, macrófagos e eosinófilos. O papel do infiltrado eosinofílico no CEC é bastante controverso, mostrando associação tanto com melhor como com pior prognóstico. Neste trabalho, tentamos relacionar os infiltrado eosinofílico e linfocítico entre si e estabelecer uma possível associação com o prognóstico do tumor. Foram avaliados 29 casos de CEC de lábio atendidos no ambulatório de cirurgia dermatológica do HC-FMUSP, no período de 1980 a 1989. Foram colhidos dados clínicos provenientes dos prontuários (sexo, idade, tabagismo, duração da lesão, presença de recidiva e metástase) e dados histológicos (grau de diferenciação, espessura, invasão perineural e perivascular, comprometimento da camada muscular, contagem de eosinófilos peritumoral e intratumoral, contagem de linfócitos) em lâminas coradas pela hematoxilia-eosina. A comparação entre a quantificação dos eosinófilos na área intra e peritumoral mostrou-se semelhante. Não foi encontrada significância estatística entre a contagem de eosinófilos tumorais e fatores que funcionam como prognósticos do CEC de lábio (espessura, duração da lesão, infiltrado perivascular e perineural, comprometimento da camada muscular, grau de diferenciação, presença de recidiva e metástase). O infiltrado linfocítico desempenha fator prognóstico nos casos de melanoma, porém, no CEC, ainda é controverso. Foi realizada a classificação semiquantitativa do infiltrado linfocítico e comparada às mesmas variáveis estudadas com os eosinófilos. Foi encontrada relação estatisticamente significativa entre maior infiltrado linfocítico e menor grau de diferenciação das células tumorais, sugerindo um papel importante dos antígenos de superfície presentes no desencadeamento da resposta imune linfocitária anti-tumoral. As outras comparações não se mostraram significativas. Tentamos relacionar ainda a quantidade de eosinófilos e linfócitos no infiltrado, e observamos que as duas populações de células se comportam de maneira independente. Concluímos então que os infiltrados eosinofílicos peritumoral e intratumoral apresentam quantidades semelhantes de eosinófilos; o infiltrado eosinofílico não tem relação com prognóstico do CEC de lábio; o número de linfócitos no infiltrado tumoral é maior em tumores mais indiferenciados; o infiltrado linfocítico não influencia no restante dos fatores que funcionam como prognóstico do CEC de lábio; a quantidade de eosinófilos e linfócitos no CEC de lábio comportam-se de maneira independentes
Title in English
Eosinophilic and lymphocytic infiltrating in squamous-cell carcinoma of the lip as prognosis
Keywords in English
Eosinophils/immunology
Infiltrating lymphocytic
Lip cancer
Metastasis
Prognosis
Recurrence
Squamous cell carcinoma
Abstract in English
The squamous-cell carcinoma (SCC) is a pathology quite frequent in people in general, mostly in white persons with history of excessive exposition to the sun rays. The fact of the SCC is located on the lips is associated with the most aggressive clinical behavior. Some clinical and histological characteristics, as the size of the tumor, degree of differentiation, density, perineural and perivascular invasion, act as prognostic factors of SCC of the lip. The presence of the tumor-infiltrating has being associated with the behavior of several tumors, including SCC. This infiltrating is composed by lymphocytes T, B, natural killer cells, macrophages and eosinophils. The role of the eosinophilict infiltrating in SCC is controversial enough because it shows association with both best and worst prognosis. In this study, we tried to stablish relations between the eosinophilic and the lymphocytic infiltratings, to stablish a possibility of association with the tumor prognosis. In order to achieve our objective, we have analized 29 cases of SCC os lip observed in the ambulatory of dermatologic surgery of HC-FMUSP from 1980 to 1989. We have also collected clinical data from the patient's promptuaries (sex, age, tobaccoism, time of lesion, presence of recurrence and metastasis) and histological data (degree of differentiation, depth, perineural and perivascular invasion, infiltration of the muscle layer, counting of peritumoral and intratumoral eosinophils, counting of lymphocytes) in microscopic features stained with hematoxylin and eosin. When comparing quantities of eosinophils in the intra and peritumoral areas we found them similar. We have not found any significant differences between the counting of tumoral eosinophils and factors that work as SCC of lips prognosis (depth, time of lesion, perivascular and perineural invasion, infiltration of the muscle layer, degree of differentiation, presence of recurrence and metastasis). The lymphocytic infiltrating acts as prognostic factor in the cases involving melanoma, however, in CEC it is still controversial. We have proceeded a classification of the lymphocytic infiltrating and compared with the same fluctuations studied with the eosinophils. We have found a significant relationship between the higher lymphocytic infiltrating and a minor degree of differentiation of tumoral cells, which suggests that the surface antigens in the lymphocytic anti-tumor immune response have an important role. Other comparisons were not significant. We tried to list the quantity of eosinophils and lyphocytes in the infiltrating and we noted that two groups of cells had differents behaviors. We conclude, therefore, that: the peritumoral and intratumoral eosinophilic infiltrating present similar quantities of eosinophils; the eosinophilic infiltrating is not related to the SCC of lips prognosis; the number of lyphocytes in the tumoral infiltrating is higher in less differentiated tumors; the lymphcytic infiltrating has no influence in the other factors that work as lips' CEC prognosis; and the quantity of eosinophils and lymphocites in the SCC of lips have independent behaviors
 
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Publishing Date
2014-10-06
 
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