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vol.75 número2ANÁLISIS EPIDEMIOLÓGICO Y CLÍNICO DEL EMBARAZO ECTÓPICO: HOSPITAL BASE DE LOS ÁNGELESMORFOMETRÍA DEL NUCLEOLO EN LA DIFERENCIACIÓN CELULAR DEL EPITELIO MAMARIO índice de autoresíndice de materiabúsqueda de artículos
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Revista chilena de obstetricia y ginecología

versión impresa ISSN 0048-766Xversión On-line ISSN 0717-7526

Resumen

CASTEJON S, Olivar  y  CASTEJON M, Oliver. MICROSCOPÍA ELECTRÓNICA DE BARRIDO DE LA HIPERPLASIA EN LA VELLOSIDAD MOLAR. Rev. chil. obstet. ginecol. [online]. 2010, vol.75, n.2, pp.101-106. ISSN 0048-766X.  http://dx.doi.org/10.4067/S0717-75262010000200005.

Objective: Study of the external surface of the syncytiotrophoblast in vesicles of hydatidiform mole was examined and analysed using scanning electron microscopy. Method: Vesicles of molar material were taken at 21 weeks of pregnancy and fxed in 2% of glutaraldehyde 0.1 M at 4 °C in delivery room and furtherly post-fxed in 1% of tetroxide of osmium according with conventional procedures of the scanning electron microscopy as dehydration, critical point drying, surface coating and examination using scanning electron microscope. Result: The fndings reveal the morphological changes in the syncytial membrane from smooth surface with small bridges or granules to the formation of numerous prolongations of plasma membrane, which produce folds, bands or columns with ramifcations, that get in touch organizing a complex net that contain spaces opened to the intervillous space. This is an expression of the proliferation of syncytial plasma membrane during the hyperplasia. Conclusion: The tridimensional observation of this net complex permit a better understanding of the structure of the molar vesicle when these images are compared with those of light microscopy.

Palabras clave : Scanning electron microscopy; placental hyperplasia; trophoblast; hydatidiform mole.

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