title: Surgical case of intracranial osteoma arising from the falx.
abstract: Intracranial osteomas completely unrelated to osseous tissues are extremely rare. In the present study, the case of a 40-year-old female who presented with persistent headache is reported. Computed tomography (CT) and bone window CT revealed an ossified lesion in the frontal area. Fast imaging employing steady-state acquisition (FIESTA)/CT venography fusion imaging demonstrated that the mass was located just below the superior sagittal sinus and cortical veins, and had adhered partially to these veins. Surgery achieved complete tumor removal with preservation of the cortical veins and superior sagittal sinus. The histological examination findings were compatible with osteoma. The present postoperative course was uneventful. The present rare case of intracranial osteoma originating from the falx was successfully treated surgically. Preoperative FIESTA/CT venography fusion imaging was very useful to demonstrate adhesion between the tumor mass and the superior sagittal sinus and cortical veins.
authors: Department of Neurosurgery, National Defense Medical College, Saitama 359-8513, Japan; Department of Neurosurgery, Teishinkai Hospital, Hokkaido 065-0033, Japan.
authors: Satoru
authors: S
authors: Takeuchi
authors: Department of Neurosurgery, Teishinkai Hospital, Hokkaido 065-0033, Japan.
authors: Rokuya
authors: R
authors: Tanikawa
authors: Department of Neurosurgery, Teishinkai Hospital, Hokkaido 065-0033, Japan.
authors: Toshiyuki
authors: T
authors: Tsuboi
authors: Department of Neurosurgery, Teishinkai Hospital, Hokkaido 065-0033, Japan.
authors: Kosumo
authors: K
authors: Noda
authors: Department of Neurosurgery, Teishinkai Hospital, Hokkaido 065-0033, Japan.
authors: Shiro
authors: S
authors: Miyata
authors: Department of Neurosurgery, Teishinkai Hospital, Hokkaido 065-0033, Japan.
authors: Nakao
authors: N
authors: Ota
authors: Department of Neurosurgery, Teishinkai Hospital, Hokkaido 065-0033, Japan.
authors: Fumihiro
authors: F
authors: Hamada
authors: Department of Neurosurgery, Teishinkai Hospital, Hokkaido 065-0033, Japan.
authors: Hiroyasu
authors: H
authors: Kamiyama
keywords: falx; intracranial; osteoma; surgery