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Vol. 18. Issue 5.
Pages 423-426 (January 2007)
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Vol. 18. Issue 5.
Pages 423-426 (January 2007)
Quiste epidermoide intradiploico infratentorial gigante
Giant intradiploic infratentorial epidermoid cyst
F. Alberione, F. Caire
, D. Fischer-Lokou, M. Gueye, J.J. Moreau
Servicio de Neurocirugía. Centro Hospitalario Universitario de Limoges. Hospital Universitario Dupuytren. Universidad de Limoges
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Resumen

Los quistes epidermoides son lesiones congénitas benignas, de lento crecimiento, que representan el 1% de todos los tumores intracraneales. En un 25% tienen una localización intradiploica y excepcionalmente infratentorial.

Presentamos un caso clínico poco frecuente de un quiste epidermoide intradiploico gigante infratentorial. El paciente consultó por una diplopia y un síndrome cerebeloso. La tomografía computarizada y la resonancia magnética mostraron una lesión gigante lítica extradural de la fosa posterior de 5,2cm×3,8cm, con realce periférico con el contraste. Utilizamos un abordaje suboccipital retrosigmoideo para realizar una exéresis completa tumoral y una resección incompleta capsular, debido a la adherencia de ésta al seno lateral.

La evolución posoperatoria fue favorable.

Realizamos una revisión bibliográfica de la literatura y discusión de nuestro caso.

Palabras clave:
Quiste epidermoide
Intradiploico
Infratentorial
Abreviaturas:
QE
TAC
RMN
Summary

Epidermoid cysts are benign, uncommon lesions (1% of all intracranial tumors). Their localization is intradiploic in 25% of cases, and exceptionally subtentorial.

We report here a rare case of giant intradiploic infratentorial epidermoid cyst. A 74-year old patient presented with recent diplopia and sindrome cerebellar. CT scan and MR imaging revealed a giant osteolytic extradural lesion of the posterior fossa (5,2cm×3,8cm) with a small area of peripheral enhancement after contrast injection. Retrosigmoid suboccipital craniectomy allowed a satisfactory removal of the tumor, followed by an acrylic cranioplasty. The outcome was good. Neuropathological examination confirmed an epidermoid cyst.

We review the literature and discuss our case.

Key word:
Epidermoid cyst
Intradiploic
Infratentorial

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