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Neurocirugía
versão impressa ISSN 1130-1473
Resumo
ALBERIONE, F. et al. Giant intradiploic infratentorial epidermoid cyst. Neurocirugía [online]. 2007, vol.18, n.5, pp.423-426. ISSN 1130-1473.
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 (5,2 cm x 3,8 cm) 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.
Palavras-chave : Epidermoid cyst; Intradiploic; Infratentorial.