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Syringomyelia intermittens: highlighting the complex pathophysiology of syringomyelia. Illustrative case

Jorn Van Der Veken, Marguerite Harding, Saba Hatami, Marc Agzarian, and Nick Vrodos

intracranial pressure due to a space-occupying lesion (chronic subdural hematomas, cavernoma), hydrocephalus, head injuries, and venoocclusive disease have been described as a cause for tonsillar herniation. None of these was present in our patient. 40–44 A CSF leak as a cause of reduced intracranial pressure and subsequent resolution of CMI has also been reported. 28 Other pathophysiological mechanisms for spontaneous resolution have been proposed, when a change in tonsillar descent is absent or less clear. In 1991, Jack et al. published a hypothesis of spontaneous

Open access

Spontaneous intracranial hypotension secondary to congenital spinal dural ectasia and genetic mosaicism for tetrasomy 10p: illustrative case

Peyton L. Nisson, Rhona Schreck, John M. Graham Jr., Marcel M. Maya, and Wouter I. Schievink

-012-9800-3 27409985 4 Beck J , Gralla J , Fung C , Spinal cerebrospinal fluid leak as the cause of chronic subdural hematomas in nongeriatric patients . J Neurosurg . 2014 ; 121 ( 6 ): 1380 – 1387 . 10.3171/2014.6.JNS14550 5 Reinstein E , Pariani M , Bannykh S , Rimoin DL , Schievink WI . Connective tissue spectrum abnormalities associated with spontaneous cerebrospinal fluid leaks: a prospective study . Eur J Hum Genet . 2013 ; 21 ( 4 ): 386 – 390 . 10.1038/ejhg.2012.191 5062124 6 Schievink WI , Maya MM , Louy C