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Revista chilena de obstetricia y ginecología
versión On-line ISSN 0717-7526
ROMERO R, Alfredo et al. Mioepitelioma de vagina: neoplasia poco frecuente en esta localización, reporte de un caso. Rev. chil. obstet. ginecol. [online]. 2012, vol.77, n.2, pp.143-147. ISSN 0717-7526. http://dx.doi.org/10.4067/S0717-75262012000200011.
Background: The myoepitheliomas are rare tumors arising from the proliferation of myoepithelial cells. Most tumors are located in the lower extremity and salivary glands. There have been only occasional myoepithelial neoplasms previously reported involving the vagina. Objective: Describe a case of myoepithelioma located in the vagina of a pregnant woman. Case report: A 29 years old pregnant female, who about 1 year prior has a vaginal mass, located in the hymen. At histopathological examination shows a mass composed of spindle cells with positivity immunohistochemical studies for vimentin, cytokeratin AE1/AE3, S100, CD10 and calponin and negative for desmin, actinmuscle specific (HHF35), smooth muscle actin and p63. With these findings it was established the diagnosis of myoepithelioma in the vagina. Conclusion: Myoepitheliomas are tumors requiring for diagnostic of immunohistochemistry or ultrastructural techniques that allow its differentiation from other tumors.
Palabras clave : Vagina; vulva; myoepithelioma; immunohistochemistry.