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        "resumen" => "<p id="spar0005" class="elsevierStyleSimplePara elsevierViewall">Presentarnos el caso de una mujer de 68 a&#241;os con un cordoma condroide del pe&#241;asco derecho que se extend&#237;a extracranealmente por el agujero rasgado posterior&#46; Inmunohistoqu&#237;micamente mostraba un perfil peculiar con positividad para vimentina&#44; prote&#237;na S100&#44; queratinas &#40;AEl-AE3&#41; y CEA&#44; siendo negativo para EMA&#44; fenotipo no descrito hasta ahora&#46;</p><p id="spar0010" class="elsevierStyleSimplePara elsevierViewall">El cordoma condroide no est&#225; reconocido corno una entidad definida por todos los autores&#46; Tiene rasgos morfol&#243;gicos de cordoma y condrosarcoma&#44; lo que se corrobora por su inmunofenotipia inmunohistoqu&#237;mica&#44; que es la de esos dos tipos de tumor&#46; Ocurre mayormente en la base del cr&#225;neo&#44; pero tambi&#233;n en la regi&#243;n sacrocox&#237;gea&#46; Parece tener una mejor evoluci&#243;n que los cordomas convencionales&#44; aunque el n&#250;mero de casos recogido en la literatura es todav&#237;a insuficiente para asegurarlo&#46;</p>"
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Vol. 10. Issue 2.
Pages 158-160 (January 1999)
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Vol. 10. Issue 2.
Pages 158-160 (January 1999)
Cordoma condroide: Presentación de un caso con características inmunohistoquímicas peculiares
Chondroid chordoma: a case report with unusual inmunohistochemical features
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R. Lázaro Santander, J.M. Vera Román
Servicio de Anatomía Patológica. Hospital General de Castellón. Castellón
J.A. Barcia Albacar*, J.L. Gil Salú*, J.M. González Darder*
* Sección de Neurocirugía. Hospital General de Castellón. Castellón
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Resumen

Presentarnos el caso de una mujer de 68 años con un cordoma condroide del peñasco derecho que se extendía extracranealmente por el agujero rasgado posterior. Inmunohistoquímicamente mostraba un perfil peculiar con positividad para vimentina, proteína S100, queratinas (AEl-AE3) y CEA, siendo negativo para EMA, fenotipo no descrito hasta ahora.

El cordoma condroide no está reconocido corno una entidad definida por todos los autores. Tiene rasgos morfológicos de cordoma y condrosarcoma, lo que se corrobora por su inmunofenotipia inmunohistoquímica, que es la de esos dos tipos de tumor. Ocurre mayormente en la base del cráneo, pero también en la región sacrocoxígea. Parece tener una mejor evolución que los cordomas convencionales, aunque el número de casos recogido en la literatura es todavía insuficiente para asegurarlo.

Palabras clave:
Cordoma condroide
Cordoma
Condrosarcoma
Tumores base cráneo
Summary

We present a case of chondroid chordoma involving the petrous bone, with an extracranial extension through the yugular foramen in a 68 year-old woman. Immunohistochemical staining exhibited a positive reaction for vimentin, S-100 protein, keratin (AEl-AE3) and CEA, but lacked reactivity for EMA.

A chondroid chordoma is not an entity universally recognized. It has both the morfological features of chordoma and chondrosarcoma. This is also shown by its inmunohistochemical profile because shares the positivity of both tumors. Although mainly found at the cranium base it can also be found at the sacro-coccygeal region. It appears to have better prognosis than conventional chordoma but since there have been recorded too few cases it cannot be substantiated as yet.

Key words:
Chondroid chordoma
Chordoma
Chondrosarcoma
Skull base tumors

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