title: Primary intracranial fibrosarcoma presenting with hemorrhage.
abstract: Primary intracranial fibrosarcomas (PIFs) are extremely rare and the origin of these tumors is still controversial. The rarity of primary intracranial fibrosarcomas makes it difficult to diagnose them correctly and establish a standard treatment. The pathologic diagnosis is made by distinguishing findings from light microscopic and immunohistochemistry analysis. PIFs have been known to be very aggressive neoplasms. The extra-axial location of the tumor could provide an opportunity to perform a total resection even if it does not mean a cure. We present a case of PIFs mimicking a falx meningioma in a 17-year-old man.
authors.affiliation: Department of Neurosurgery, Konkuk University Medical Center, Seoul, Korea.
authors.forename: Jong Gon
authors.initials: JG
authors.lastname: Lee
authors.affiliation: Department of Neurosurgery, Konkuk University Medical Center, Seoul, Korea.
authors.forename: Sang Woo
authors.initials: SW
authors.lastname: Song
authors.affiliation: Department of Neurosurgery, Konkuk University Medical Center, Seoul, Korea.
authors.forename: Young-Cho
authors.initials: YC
authors.lastname: Koh
authors.affiliation: Department of Neurosurgery, Konkuk University Medical Center, Seoul, Korea.
authors.forename: Joon
authors.initials: J
authors.lastname: Cho
authors.affiliation: Department of Radiology, Konkuk University Medical Center, Seoul, Korea.
authors.forename: Jin Woo
authors.initials: JW
authors.lastname: Choi
authors.affiliation: Department of Radiology, Konkuk University Medical Center, Seoul, Korea.
authors.forename: Hong Gee
authors.initials: HG
authors.lastname: Roh
authors.affiliation: Department of Pathology, Konkuk University Medical Center, Seoul, Korea.
authors.forename: So-Dug
authors.initials: SD
authors.lastname: Lim
keywords: Differential diagnosis; Fibrosarcoma; Primary CNS origin