Sentinel lymph node biopsy in rats. Comparison between paraffin and frozen section analysis
Acta cir. bras
;
29(supl.1): 57-61, 2014. tab
Artigo
em Inglês
| LILACS
| ID: lil-720396
ABSTRACT
PURPOSE: To simulate a lymph node metastasis in an animal model using activated carbon, assess their identification in frozen section analysis and compare with histopathological examination in paraffin. METHODS: Thirty two adult female rats were used. They received the carbon injection on its hind legs. Half of the rats was sacrificed on day one, and the other half after 21 days. Thus, 64 lymph nodes were dissected and split longitudinally. One half of the lymph node was sent immediately to frozen section analysis. The other half was fixed in 10% formaldehyde to be cut in paraffin. Slides were divided into quadrants and classified by the presence of carbon in these four quadrants_ They were also classified by the carbon staining intensity. RESULTS: Comparing the slides obtained in the first day and 21 days, there was a tendency of carbon to spread over time, but without statistical significance. The intensity did not alter over time. CONCLUSION: There was no concordance between the two methods of pathological analysis, however the actived carbon was seen in all lymph nodes. .
Texto completo:
DisponíveL
Índice:
LILACS (Américas)
Assunto principal:
Inclusão em Parafina
/
Biópsia de Linfonodo Sentinela
/
Secções Congeladas
/
Linfonodos
Tipo de estudo:
Estudo prognóstico
Limite:
Animais
Idioma:
Inglês
Revista:
Acta cir. bras
Assunto da revista:
Cirurgia Geral
/
Procedimentos Cir£rgicos Operat¢rios
Ano de publicação:
2014
Tipo de documento:
Artigo
País de afiliação:
Brasil
Instituição/País de afiliação:
UNIFESP/BR
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