engleski

SACRAL PERINEURIAL (TARLOV) CYSTS: A REPORT OF TWO CASES

Sacral perineurial cysts are often confused with meningeal cysts and diverticula. While meningeal cysts are usually asymptomatic, perineurial cysts may be responsible for clinical symptoms. Perineurial and meningeal cysts can be differentiated by their location, microscopically and radiologically. Meningeal cysts develop as outpouchings from the subarachnoid space and they may be extradural or intradural and containing no neural tissue. Perineurial cysts occur at the site of posterior root ganglion with their wall, partially or even totally, composed of neural tissue. They are often multiple. On initial myelography sacral perineurial cysts do not fill with contrast medium in comparison to meningeal cysts which are visualised on. We have described two cases of, commonly rare, sacral perineurial cysts that have been operated on at the Department of Neurosurgery. In the first case a patient underwent surgery in another state on account of herniated disc on the L4/L5 and L5/S1 level. After performed surgery symptoms like pain and paraesthesia have recurred. MR showed the existence of a sacral perineurial cyst, and after complete cyst excision the patient made a good recovery. A surgery was performed on the second patient due to what seemed like an intradural tumour of the sacral region on computed tomography (CT) scans. Intraoperatively it was, both surgically and histologically verified as a perineurial cyst and upon its excision the patient made an excellent recovery without any neurological symptoms.

SACRAL PERINEURIAL (TARLOV) CYSTS

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