Meningiomas occur in 1%-4% of primary intracranial tumors in the pediatric group, and is increasing in incidence with age. Some authors have reported that meningioma is more prevalent among adult males, but there is n...Meningiomas occur in 1%-4% of primary intracranial tumors in the pediatric group, and is increasing in incidence with age. Some authors have reported that meningioma is more prevalent among adult males, but there is no gender prevalence. The accepted origin of meningiomas is from the arachnoid ceils lining the meninges, or the choroid plexuses. Since Beckwith and Palmer introduced the term ＇rhabdoid tumor＇ in 1978 in reference to a subgroup of childhood malignant renal tumors, many tumors with a rhabdoid morphology have been reported in various sites, including the central nervous system. In 1998 Kepes et al.展开更多
文摘Meningiomas occur in 1%-4% of primary intracranial tumors in the pediatric group, and is increasing in incidence with age. Some authors have reported that meningioma is more prevalent among adult males, but there is no gender prevalence. The accepted origin of meningiomas is from the arachnoid ceils lining the meninges, or the choroid plexuses. Since Beckwith and Palmer introduced the term ＇rhabdoid tumor＇ in 1978 in reference to a subgroup of childhood malignant renal tumors, many tumors with a rhabdoid morphology have been reported in various sites, including the central nervous system. In 1998 Kepes et al.
