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Vol. 40. Issue 1.
Pages 47-52 (January - March 2007)
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Vol. 40. Issue 1.
Pages 47-52 (January - March 2007)
Casuística
Extraovarian primary peritoneal carcinoma. A case report
Carcinoma peritoneal primario extraovárico. Presentación de un caso
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1924
Jesús Vera Álvarez1, Miguel Marigil Gómez1, María Dolores García Prats1, Manuel Abascal Agorreta1, José Manuel Ramón Cajal2, José Ignacio López López3, Juan Pablo Royo Goyanes2
Hospital San Jorge, Huesca
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Summary

One case of extraovarian primary peritoneal carcinoma is reported. This rare interesting tumor is characterized by a peritoneal carcinomatosis with ascites and by a histological pattern similar to ovarian serous papillary carcinoma, but it either spares the ovaries or involves the surface of the ovaries only microscopically. The patient had abdominal swelling, ascites with positive cytology, and elevated serum CA-125. At surgery multifocal or diffuse peritoneal involvement was found. Microscopic ovarian serosal surface involvement was demonstrated. Tumor cells stained positive for cytokeratin (AE1/AE3), epithelial membrane antigen, B72.3, Ber-EP4, Leu-M1, p53, carcinoembryonic antigen, placental alkaline phosphatase, S-100, CA-125, and estrogen receptors.

Keywords:
Peritoneal carcinoma
papillary carcinoma
extraovarian neoplasms
immunohistochemistry
Resumen

Se presenta un caso de carcinoma peritoneal primario extraovárico. Este raro e interesante tumor se caracteriza por una carcinomatosis peritoneal y por un patrón histológico similar al del carcinoma papilar seroso de ovario, pero sin comprometer o sólo afectando microscópicamente la superficie de los ovarios. La paciente presentaba hinchazón abdominal, ascitis con citología positiva y el CA-125 elevado en el suero. En el momento de la cirugía se encontró una afectación peritoneal difusa o multifocal, existiendo afectación microscópica de la superficie serosa ovárica. Las células tumorales fueron positivas para citoqueratina (AE1/AE3), antígeno de membrana epitelial, B72.3, Ber-EP4, Leu-M1, p53, antígeno carcinoembrionario, fosfatasa alcalina placentaria, proteína S-100, CA-125 y receptores estrogénicos.

Palabras clave:
Carcinoma peritoneal
carcinoma papilar
neoplasia extraovárica
inmumohistoquímica

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