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BACKGROUND Ependymomas of the filum terminale (EFT) form a specific and relatively uncommon subtype of spinal cord ependymomas. Most series in the literature are small, spanning a large time period. Up to date no consensus has been reached about the optimal treatment of these lesions. Some authors promote postoperative radiotherapy for all cases, others(More)
Sirs: Cerebrospinal fluid (CSF) oligoclonal immunoglobulin (Ig) G bands are a sensitive marker of multiple sclerosis (MS) and other inflammatory diseases of the central nervous system (CNS). However, they may also be detected in some non-inflammatory disorders, with an unknown frequency [1, 4]. We report a patient with intramedullary cavernous angiomas(More)
In this paper, we present an improved method for solving Riccati equations, which possesses a fast convergence rate and high accuracy. This modification is based on a previous approach used for solving Riccati equations (Tang and Li in Appl Math Comput 194:431–440, 2007). The Riccati equation is first transformed to a second-order linear ordinary(More)
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