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Vol. 39. Issue 3.
Pages 193-196 (July - September 2006)
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Vol. 39. Issue 3.
Pages 193-196 (July - September 2006)
Casuística
Gliosarcoma con diferenciación adenoide y fibras de Rosenthal. Presentación de un caso
Gliosarcoma with adenoid differentiation and Rosenthal fibers
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Lidia Atienza Cuevas, M.ª José Añón Requena, Rosario Guerrero Cauqui, Manuel Beltrán Ruiz-Henestrosa, José Pérez Requena
Servicio de Anatomía Patológica del Hospital Universitario Puerta del Mar. Cádiz
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Resumen
Introducción

El gliosarcoma es una variante rara de glioblastoma que se caracteriza por un patrón bifásico en el que alternan áreas de diferenciación glial y mesenquimal. La presencia de alteraciones genéticas idénticas en los componentes glial y sarcomatoso apoya la idea de un origen monoclonal del gliosarcoma.

Pacientes y métodos

Presentamos un caso de gliosarcoma con diferenciación adenoide y fibras de Rosenthal.

Conclusiones

La existencia de fibras de Rosenthal es un hallazgo muy poco habitual en el seno de tumoraciones gliales de alto grado.

Palabras clave:
gliosarcoma
glioblastoma
sarcoma
tumores cerebrales
carcinoma
Summary
Introduction

Gliosarcoma is a rare glioblastoma variant characterized by a biphasic tissue pattern with alternating areas displaying glial and mesenchymal differentiation. The presence of identical genetic alterations in both gliomatous and sarcomatous components strongly supports the concept of a monoclonal origin of gliosarcoma.

Patients and methods

We report a case of gliosarcoma with adenoid differentiation and Rosenthal fibers.

Conclusions

The presence of Rosenthal fibers is a very uncommon finding in high grade glial neoplasms.

Key words:
gliosarcoma
glioblastoma
sarcoma
cerebral tumors
carcinoma

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