Primary intracranial fibrosarcoma with intratumoral hemorrhage: neuropathological diagnosis with review of the literature.

Primary intracranial sarcomas are rare tumors of mesenchymal origin in the central nervous system (CNS). Spontaneous hemorrhage, while not an uncommon presentation of brain tumors, has not been described in primary cerebral sarcoma. We report the case of a 43 year old woman presenting with spontaneous hemorrhage into a primary cerebral fibrosarcoma, and discuss this case in the context of the diagnostic criterions of these rare tumors previous reports of intracranial sarcomas and mechanisms of intratumoral hemorrhage.