Cases reported "Tarlov Cysts"

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1/2. abdominal pain secondary to a sacral perineural cyst.

    BACKGROUND CONTEXT: Perineural cysts are commonly found in the sacral region and are incidently discovered on imaging studies performed for the evaluation of low back and/or leg pain. PURPOSE: To report on a patient presenting with abdominal pain secondary to a large sacral perineural cyst. STUDY DESIGN/SETTING: Case report. methods/PATIENT SAMPLE: A 47-year-old woman was referred to a specialized multidisciplinary spine center with complaints of left lower quadrant abdominal pain and left leg pain. Of significant note was the presence of constipation and urinary frequency over the preceding 8 months. physical examination was normal. magnetic resonance imaging of the lumbosacral spine revealed large perineural cysts eroding the sacrum and extending to the pelvis. The presence of abdominal symptoms prompted a neurosurgical consultation. However, after considering the possible risks associated with the surgical procedure, the patient opted to follow the nonsurgical route. RESULT AND CONCLUSIONS: Although commonly visualized, sacral perineural cysts are rarely symptomatic. When symptomatic, it may be secondary to its size and location. Presence of abdominal pain in a patient with back and/or leg pain should prompt the evaluation of the lumbosacral spine.
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2/2. Presacral mass consisting of a meningocele and a Tarlov cyst: successful surgical treatment based on pathogenic hypothesis.

    This illustrative case shows a meningocele created by erosion of the sacrum by a perineurial cyst. It is the first report of a large presacral mass consisting of a perineurial cyst and a meningocele simultaneously. We describe a hypothesis for the pathogenesis of this particular constellation of circumstances and present a successful surgical option based on the assumed pathogenesis.
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