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Intraneural Growth of a Capillary Haemangioma of the Cauda Equina

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¶ Solitary intraneural haemangiomas are very rare. A case of intraneural capillary haemangioma involving two nerve roots of the cauda equina is reported. The patient was a 63-year-old woman with a three years history of intermittent lumbalgia and numbness of the ventral surface of the left thigh. Magnetic resonance imaging detected an intradural extramedullary nodular space occupying mass at the level of the conus medullaris. Laminectomy of T12 and complete removal of the tumour were performed. Histopathological analysis demonstrated a capillary haemangioma. The tumour was located within the sheaths of a spinal nerve root. The lesion consisted of a myriad of small and very small vessels, reticularly arranged with normal nerve fascicles dispersed within the nodules of clustered capillaries. The present case of an intraneural capillary haemangioma of the cauda equina appears to be one of the first reported examples of this entity in the world's literature. The clinical presentation, diagnostic procedures and therapeutic options of intraneural haemangiomas of the conus medullaris and cauda equina are discussed. The current literature is reviewed.

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Nowak, D., Gumprecht, H., Stölzle, A. et al. Intraneural Growth of a Capillary Haemangioma of the Cauda Equina. Acta Neurochir (Wien) 142, 463–468 (2000).

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