Quistes foliculares y cuerpo luteo quistico en bovinos de sacrificio. II. Estudio morfopatológico

espanolSe llevo a cabo un estudio morfopatologico de los quistes foliculares y cuerpos luteos quisticos diagnosticados durante el examen de 1.489 hembras bovinas sacrificadas en mataderos de Leon. En los quistes foliculares no luteinizados con cuerpo luteo asociado, fue mas frecuente la ausencia de celulas de la granulosa; asi mismo, las tecas no se distinguieron en un 75% de los casos. Cuando no habia cuerpo luteo asociado, las celulas de la granulosa estaban ausentes o presentes en un porcentaje mas equilibrado; en caso de estar ausentes, las tecas no se distinguian en el 47,79%. Si la capa de celulas de la granulosa estaba presente, las tecas generalmente no se diferenciaban. Respecto a los quistes foliculares luteinizados se observo la existencia, a nivel de la teca interna, de tejido luteinico; rodeando la cavidad central se encontraba una capa de tejido conjuntivo, en ocasiones, revestida por unas celulas de aspecto endoteliforme. En cuanto a los cuerpos luteos quisticos, microscopicamente, presentaban caracteristicas estructurales diferentes, en relacion con el tamano y edad del quiste. Aquellos mas evolucionados unicamente se distinguian de los quistes foliculares luteinizados por la presencia de un estigma de ovulacion. EnglishA morphopathological study on the cystic follicles and cystic corpora lutea diagnosed during the examination of 1,489 bovine females sacrified in the slaughterhouses of Leon was carried out. In the follicular not luteinized cysts if a corpus luteum was associated the absence of granulosa cells was more frequent and in 75% of cases the presence of the thecae was not clear. When the corpus luteum was absent the presence or the absence of granulosa cells was similar, if they were absent then in 47.79% of cases the presence of the thecae was not clear, but if the granulosa cells were present generally the thecae were absent. In the case of the follicular luteinized cysts a luteal tissue in the theca interna as well as a conjunctival layer around the lumen lined by endothelial-like cells was observed. In the case of the cystic corpora lutea, the microscopical appearence was related with the size and the age of the cyst. In the older ones only the presence of the ovulatory stigma could distinguished them from the follicular luteinized cysts.