Giant cavernous Hemangioma of the cavernous Sinus. Case Report and Review of Literature.

The incidence of cavernous sinuses cavernous hemangiomas is 2% of all cavernous malformations. These lesions are well circumscribed benign neoplasm, that are confined to the dural layer of the venous sinus. These lesions are difficult to accurately diagnose them presurgically and the surgical treatment is also difficult. Nevertheless with the new imagining diagnosis technologies and with advancement in microneurosurgical techniques, neurosurgeons can treat these lesions with more confidence. In this article we want to report a case of a 24 year woman who presented to our institution with galactorrea as the only clinical presentation. This patient was investigated and was found to have a giant lesion in the right middle fossa. She was taken to surgery with the suspicion of a giant meningioma but this surgery was aborted when we found that the lesion did not correspond to a meningioma. The patient was followed for 4 years and the galactorrea was treated and she was stable, but then she presented with severe headache and deterioration in her consciousness. She was treated in another institution where she was taken to surgery and a partial resection was performed, the surgery was aborted because the patient presented massive bleeding. we want to present this case that is dealing with an infrequent lesion of a very delicate localization of the skull base. We also want to emphasize in having this differential diagnosis when dealing with lesions in this area. We also want to warn and recommend that if a neurosurgeon stumble into one of these lesions in surgery we recommend to back off and plan better the surgical management. Planning adequately the surgical procedure improve the prognosis in these patients We will present this case and review the literature concerning these rare lesions.