Tumor fibroso solitario de base de cráneo y espacio parafaríngeo.Comunicación de un caso.

Resumo

We present a case report of a 45 years old woman, with history of more than 9 months of left earache, left hearing loss, left continuous tinnitus "as an fluid", dysphonia and left shift sensation of tongue. At exploration was observed: hipotimpanic left vinous red lesion, deviated nasal septum to the right, left vocal cord palsy in paramedian position, left tongue deviation suggestive of left hypoglossal nerve palsy, left pharyngeal anesthesia and left parapharyngeal mass that reaches the left submandibular angle. Initially radiology presents images that support jugular-carotid left glomus reaching middle cranial fossa, left middle ear, left infratemporal fossa and left parapharyngeal space. After surgical excision of the lesion the pathology results were compatible with solitary fibrous tumor. Solitary fibrous tumor is a rare neoplasm of mesenchymal origin, usually benign, that commonly involves the pleura but also it can be in the extrapleural sites. This neoplasia represents a diagnostic challenge, being often indistinguishable from other neoplasms of the head and neck until confirmation pathologically. Nowadays, with immunohistochemical progress, is possible differentiate this neoplasia from a wide range of tumors that in the past was impossible. Complete excision is the best prognostic factor despite aggressive behavior or injury. Long-term survival is usually good.