Fístula de líquido cefalorraquídeo espontánea: meningocele de pared lateral de esfenoides

Abstract

Cerebrospinal fluid fistulas are the result of bone dehiscence and partial thinning that can weaken the normal barrier between the subarachnoid space and the sinonasal cavity. These can become so large that it can favor herniation of the dura and arachnoid into the nasal cavity, this site is the least resistant at the base of the skull. Spontaneous cerebrospinal fluid fistulas (CSFF) usually present in the cribriform plate where the dura around the olfactory nerve appears to extend through it. Another common site is through a highly pneumatic sphenoid sinus where a high-pressure system could be a contributing factor. We present a 49-year-old female patient with a history of head trauma, who subsequently presented a CSFF. LUXMÉDICA AÑO 15, NÚMERO 44, MAYO-AGOSTO 2020, PP 49-55.