Intradural spinal XXXX in adults.

@entity1 @entity4037 @entity1183 @entity1644 @entity322 @entity602 @entity425 @entity145 @entity45 @entity427 @entity17589 @entity9 @entity130
BACKGROUND: Idiopathic @entity145 are rare lesions not associated with @entity130 or other inflammatory insults. To date, there have been few large series describing the presentation and management of these lesions. METHODS: Twenty-one cases of intradural spinal @entity145 were identified (1994-2001). Pediatric @entity1 and cases with antecedent @entity130 were excluded. There were eight @entity1 and 13 @entity1 with an average age of 52 years. Follow-up averaged 17 months. RESULTS: Cysts were most commonly found in the thoracic spine (81%). Fifteen cysts were dorsal to the spinal cord and six were ventral to the spinal cord. All @entity1 underwent laminectomy with cyst fenestration and radical cyst wall resection. Based upon intraoperative ultrasonography, four cysts were also shunted to the subarachnoid space, and seven @entity1 had an expansile duraplasty with freeze-dried dural allograft. Of the seven @entity1 with @entity1644 , three resolved with extramedullary cyst resection alone. Four required syrinx to subarachnoid shunting. Follow-up MRI demonstrated cyst resolution in all cases. All seven intramedullary syrinxes were decreased in size and four resolved completely. @entity425 (100%), @entity427 (91%), and @entity322 (80%) were more likely to improve than @entity9 (44%) and @entity1183 (33%). One @entity1 had increased @entity1183 postoperatively. CONCLUSIONS: @entity4037 are more likely to cause @entity425 and @entity17589 signs. Preoperative symptoms of @entity9 and @entity1183 are less likely to improve than @entity425 and @entity602 . Utilizing intraoperative ultrasound to guide aggressive surgical treatment with the adjuncts of shunting and duraplasty results in a high rate of @entity45 .
