Meningiomas are slow growing benign tumors of the central nervous system. Although local recurrence does occasionally occur, extracranial metastasis of meningiomas is exceedingly rare and rarely reported, occurring in less than 1 per 1000 cases. Most commonly, metastasis occurs to the lung, and most ...
(Pathology) a tumour of the meninges of the brain that grows slowly and is usually benign, although it can be malignant Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014 ...
Most meningiomas are benign. They are the most common of all nonglial, primary brain tumors, with figures cited ranging from 15 to 25% of all intracranial tumors. (Claus et al., 2005 ; Hart, Benzel, and Ford, 1997 ). Meningiomas occur most commonly between the ages of 40 and 70 and...
Most of them are benign (World Health Organization [WHO] grade I), slow-growing lesions, but some are classified as atypical (WHO grade II) or malignant (WHO grade III). Surgical resection is curative when complete removal of a benign meningioma is possible. Incompletely resected tumors and ...
(Pathology) a tumour of the meninges of the brain that grows slowly and is usually benign, although it can be malignant Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014 ...
美 英[mɪnɪndʒɪ'əʊmə] 网络脑膜瘤;脊膜瘤;脑脊膜瘤 复数:meningiomas 英英 网络释义 n. 1. aslow-growingbenigntumorthataffectsthemeningesofthebrainorspinalcordandmaycauseseriousdamagebycompression
n.a tumor arising in the meninges which surround the brain and spinal cord; usually slow growing and sometimes malignant meningioma_医学行业词汇 脑〔脊〕膜瘤:质硬,生长缓慢,通常为血管瘤,主要沿脑膜血管和上矢状窦生长并侵袭硬脑膜和颅骨,导致颅骨糜烂和变薄。脑压常增高。脑膜瘤现常按其解剖部位分类,...
Benign models have been more often used and show more consistent results with 105–5 × 107 cells and duration of incubation ranging from one month to almost one year. Duration of incubation for atypical tumors is up to 180 days [122] while that for malignant tumors is significantly ...
Grade 1—Benign/typical• Angiomatous• Fibrous (fibroblastic)• Lymphoplasmacyte-rich• Meningiothelial• Metaplastic• Microcystic• Psammomatous• Secretory• Transitional (mixed)Grade 2—Atypical• Chordoid• Clear cell• OncocyticGrade 3—Malignant/anaplastic• Anaplastic• ...
Benign meningiomas are associated with a very good survival prognosis with approximately 100% 5 year survival. Morbidity relates to the location of the tumour and the degree of neurological dysfunction at diagnosis. Malignant meningiomas have a poor prognosis with median survival of between one and th...