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Microscopic study of edema in hydatidiform mole / Estudo microscópico de edema em mola hidatiforme
Castejón, Olivar C; Caraballo, Aury; Castejón, Oliver; Cedeño, Elizabeth.
  • Castejón, Olivar C; University of Carabobo. Faculty of Health Sciences. Center for Research and Analysis of Teaching Assistance of the Nucleus Aragua. Maracay. VE
  • Caraballo, Aury; University of Carabobo. Faculty of Health Sciences. Center for Research and Analysis of Teaching Assistance of the Nucleus Aragua. Maracay. VE
  • Castejón, Oliver; University of Carabobo. Faculty of Health Sciences. Center for Research and Analysis of Teaching Assistance of the Nucleus Aragua. Maracay. VE
  • Cedeño, Elizabeth; University of Carabobo. Faculty of Health Sciences. Center for Research and Analysis of Teaching Assistance of the Nucleus Aragua. Maracay. VE
Rev. bras. saúde matern. infant ; 14(3): 261-268, Jul-Sep/2014. graf
Article in English | LILACS, BVSAM | ID: lil-725704
ABSTRACT
The purpose of this study is to use light microscopy and scanning electron microscopy to determine the effect of edema on the structure of the molar vesicle.

Methods:

samples were taken from the complete hydatidiform mole and processed using conventional light and scanning electron microscopy techniques and an observation protocol that identified four variables factors underlying the development of edema; the condition of the trophoblast basement membrane, development of the villi, accumulation and degeneration of sulphated mucosubstances at stromal level.

Results:

light microscopy showed a permeable trophoblastic basement membrane, a swollen syncytium, edematous regions disorganizating the stromal region and causing ischemic necrosis of cells. Using scanning electron microscopy, the basement membrane was found to be distended and thickened, with large irregular holes for the entry and movement of liquid, leaving a wide range of fluids during the influx process and depriving stromal cells of nutrition.

Conclusions:

a new three-dimensional view of the changes brought about by the entry of fluids into the stroma of molar hydropic vesicles was provided by scanning electron microscopy and confirmed by light microscopy, thereby explaining the changes occurring at the level of the stroma as an effect of the edema...
RESUMO
Este estudo visa utilizar a microscopia ótica e eletrônica de varredura para determinar o efeito de edema na estrutura da vesícula molar.

Métodos:

amostras foram obtidas da mola hidatiforme completa e processadas por técnicas de microscopia ótica convencional e eletrônica de varredura e por um protocolo de observação para identificar quatro variáveis relacionados à evolução de edema; a condição da membrana trofoblástica basal, a evolução dos vilos, a acumulação e a degeneração de mucosubstâncias sulfatadas ao nível stromal.

Resultados:

a microscopia ótica revelou uma membrana trofoblástica basal permeável, um sincítio inchado, regiões edematosas desorganizando a região stromal e provocando a necrose isquêmica das células. Com a microscopia eletrônica de varredura, foi observado que a membrana basal foi distendida e espessada, com grandes buracos irregulares para a entrada e movimento de líquidos, deixando uma larga variedade de fluidos durante o processo de influxo e privando as células stromais de nutrição.

Conclusões:

a microscopia eletrônica de varredura providenciou uma nova visualização tridimensional das alterações provocadas pela entrada de fluidos na stroma das vesículas molares, que foi verificada pela microscopia ótica, assim explicando as alterações que ocorreram ao nível da stroma como um efeito da edema...
Subject(s)


Full text: Available Index: LILACS (Americas) Main subject: Uterine Neoplasms / Microscopy, Electron, Scanning / Hydatidiform Mole / Edema Type of study: Prognostic study Limits: Female / Humans / Pregnancy Language: English Journal: Rev. bras. saúde matern. infant Year: 2014 Type: Article Affiliation country: Venezuela Institution/Affiliation country: University of Carabobo/VE

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Full text: Available Index: LILACS (Americas) Main subject: Uterine Neoplasms / Microscopy, Electron, Scanning / Hydatidiform Mole / Edema Type of study: Prognostic study Limits: Female / Humans / Pregnancy Language: English Journal: Rev. bras. saúde matern. infant Year: 2014 Type: Article Affiliation country: Venezuela Institution/Affiliation country: University of Carabobo/VE