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Braz. j. vet. res. anim. sci; 39(1): 38-42, 2002. tab, gra

Artigo em Inglês | VETINDEX | ID: vti-12603

Resumo

The aim of the present study was to perform a retrospective review, from 1932 to 1999, in order to establish the number of cases of mammary tumors in dogs in the records at the Pathology Department of Faculdade de Medicina Veterinária - USP, as well as the presence of desmoplasia and cartilaginous and bone metaplasia in 578 of these tumors. Among the 537 malignant tumors, 13.05 percent were simple tubular adenocarcinomas, 3.91 percent were complex tubular adenocarcinomas, 7.26 percent simple papillary adenocarcinomas, 4.28 percent complex papillary adenocarcinomas , 23.27 percent simple papillary cystadenocarcinomas ,8.37 percent complex papillary cystadenocarcinomas,16.38 percent simple solid adenocarcinomas ,6.70 percent complex solid adenocarcinomas, 2.04 percent simple spindle cell carcinomas, 1.11 percent simple spindle cell carcinomas ,2.79 percent mucinous carcinomas ,8.19 percent anaplastic carcinomas ,0.93 percent squamous carcinomas, 1.30 percent fibrosarcomas,.0.18 percent chondrosarcoma, 0.18 percent osteosarcoma and among the 41 benign tumors ,51.21 percent were adenoma, 12.19 percent papillary cystadenoma,7.31 percent papilloma, 4.87 percent cystic fibroadenoma and 24.39 percent were fibroadenoma. Both desmoplasia and metaplasia were frequent findings in benign and malignant neoplasms, but they were more frequent among complex tubular adenocarcinomas: 38 percent presented desmoplasia, 57 percent cartilaginous metaplasia and 28 percent bone metaplasia. Among the benign neoplasms, adenoma presented the more frequency: 14 percent presented desmoplasia, 29 percent cartilaginous metaplasia and 24 percent bone metaplasia. Results of this study emphasize the complexity of the inter-relationship between the macromolecules in the extracellular matrix and tumoral cells.(AU)

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A finalidade do presente trabalho foi efetuar um estudo retrospectivo, de 1932 à 1999 , afim de se estabelecer a casuística desses tumores nos arquivos do Departamento de Patologia da Faculdade de Medicina Veterinária USP , bem como a freqüência de desmoplasia, metaplasia cartilaginosa e óssea em 578 desses tumores. Entre os 537 tumores malignos, 13.05% foram adenocarcinomas tubulares simples, 3.91% foram adenocarcinomas tubulares compostos, 7.26% adenocarcinomas papilíferos simples, 4.28% adenocarcinomas papilíferos compostos, 23.27% cistoadenocarcinomas papilíferos simples, 8.37% cistoadenocarcinomas papilíferos compostos, 16.38% adenocarcinomas sólidos simples, 6.70% adenocarcinomas sólidos compostos, 2.04% carcinomas de células espinhosas simples, 1.11% carcinomas de células espinhosas compostos, 2.79% carcinomas mucinosos ,8.19% carcinomas anaplásicos ,0.93% carcinomas escamosos, 1.30% fibrossarcomas,.0.18% condrossarcoma, 0.18% osteossarcoma e entre os 41 tumores benignos ,51.21% foram adenomas, 12.19% cistadenomas pailíferos,7.31% papilomas, 4.87% fibroadenomas e 24.39% foram fibroadenomas. Tanto a desmoplasia como a metaplasia foi um achado freqüente nas neoplasias benignas e malignas, mas foram mais freqüentes entre os adenocarcinomas tubulares compostos: 38% apresentaram desmoplasia, 57% metaplasia cartilaginosa e 28% metaplasia óssea. Entre as neoplasias benignas, adenoma apresentou a maior frequência: 14 % com desmoplasia, 29% com metaplasia cartilaginosa e 24% com metaplasia óssea. Os resultados deste estudo enfatizam a complexidade da inter-relação entre as macromoléculas da matriz extracelular e as células tumorais.(AU)

Biblioteca responsável: BR68.1