Planimetria do cone uterino: localização das displasias e neoplasias: um estudo de 23 peças de conização.
DOI:
https://doi.org/10.32635/2176-9745.RBC.1984v30n4.3467Palavras-chave:
Conização, Displasias Epiteliais, Neoplasias Intraépiteliais, Planimetria, índice de Conversão Matemática, Carcinoma in SituResumo
São estudadas 23 peças de conização de colo uterino, através de cortes seriados macroscópicos da totalidade do material, realizando-se planimetria macro e microscópica. Descreve-se a técnica do desenho e dos cortes seriados dos cones. A média de cortes por peça foi de 22, 34 com um total de 514; o maior número de cortes macroscópicos foi de 28 e o menor, de 15; o corte mais grosso mediu 0,4cm e o mais fino 0,1cm. O material foi processado em conjunto com a rotina do serviço e de cada bloco de parafina foram obtidos um mínimo de 3 cortes histológicos, corados pela hematoxilina-eosina. As lâminas foram estudadas assinalando-se as lesões displásicas e neoplásicas (intraepiteliais; com suspeita de invasão inicial do estroma; com invasão inicial do estroma; microinvasoras e macroinvasoras). Depois de medidas as lesões nas lâminas histológicas, os resultados foram projetados no desenho dos cortes seriados do cone, utilizando-se um índice de conversão matemática que corrige a distorção sofrida durante o processamento técnico e garantaque o tamanho e a localização da lesão correspondam ao original a fresco. Percebe-se nítida diferença entre os desenhos realizados com ou sem o índice de conversão. Foram analisados 10 casos de localização seletiva no orifício externo; 4 com predomínio na localização ectocervical; 5 com predomínio endocervical e 4 com localização seletiva endocervical. Chama atenção o número significativo de localizações endocervicais.
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