Spinal Extradural Meningeal Cyst in Klippel-Trenaunay Syndrome

A case of a symptomatic spinal extradural meningeal cyst (SEMC) in Klippel-Trenaunay syndrome (KTS) is introduced. A 38-year-old woman presented with right L2 radiculopathy. She underwent operations for varicose veins in both her lower extremities. She had port-wine nevi on her trunk and extremities. The edematous change in both legs had waxed and waned. Magnetic resonance imaging showed an 11.8x13 mm extradural meningeal cyst growing through the intervertebral foramen in L2-3. Multiple meningeal cysts were located in the dorsal aspect of the spinal cord from T3 to T10. A 5.8x6.2 mm cyst was also found in left pleural cavity. The extradural meningeal cyst was completely excised and the preoperative symptom was improved. KTS is a congenital disorder due to a mesodermal abnormality, which may predispose the dura to weakness. The SEMC may occur through the dural defect or weakened point.

Noncommunicating Spinal Extradural Meningeal Cyst in Thoracolumbar Spine

Spinal extradural meningeal cyst has been rarely reported, whose etiologies are assumed to be the communication of cerebrospinal fluid (CSF) between intradural subarchnoid space and cyst due to the congenital defect in dura mater. Although the CSF communication due to this defect can be found, in most case, few cases in which there is a lack of the communication have also been reported. We report a case of the huge extradural meningeal cyst occurring in the thoracolumbar spine (from T10 to L2) where there was a lack of the communication between the intradural subarachnoid space and cyst in a 46-year-old man who presented with symptoms that were indicative of progressive paraparesis and leg pain. The patient underwent laminectomy and cyst excision. On intraoperative findings, the dura was intact and there was a lack of the communication with intradural subarachnoid space. Immediately after the surgery, weakness and leg pain disappeared shortly.

A Case of The Surgically Treated Intraspinal Extradural Meningeal Cyst Demonstrating 'Ball-Valve' Mechanism of Formation

The intraspinal extradural meningeal cyst is a rare cause of compression of spinal cord. The most common clinical presentation is a slowly progressive myelopathy, but our case was presented with polyradiculopathy at admission. The authors believe that our case is particularly attributable to a ball-valve mechanism involving an idiopathic dural rent and a herniated segment of an underlying dorsal rootlet in the operative finding. As in our case, magnetic resonance imaging provides accurate diagnosis to identify an intraspinal extradural meningeal cyst. Closure of dural rent with marsupialization of the meningeal cyst through minimal laminectomy can be successfully managed with favorable clinical outcome as in our case.

Sacral Meningeal Cysts:Evaluation with MR Imaging / 实用放射学杂志

Objective To study the clinical manifestat ions, MR diagnosis and differential diagnosis of sacral meningeal cyst.Methods 25 patients with sacral meningeal cyst proved by operation and pathology, 9 cases of male, 16 cases of female; the age ranged fro m 18 to 56 years old, average age is 40.3. All cases were performed on MR examin ation. Results The shape of cysts in 19 cases were elliptic,long marsupial shape in 3 cases,irregular in 1 case,string shap in 2 cases.The edge of cysts is clear and the wall of cysts is very thin.MR signal in tensity of fl uid in sacral meningeal cysts exhibits similarity to cerebrospinal fluid,which s hows uniform low signal in T 1WI and high signal in T 2WI.There are 8 cases sc an whose MR signal of cysts fluid is much higher than that of cerebrospinal flui d in T 2WI. In 7 cases thin strip nerve root can be found through the cysts in T 1WI and T 2WI. The antrast enhancement was made in 8 cases and there were no any enhancement both in content and wall of cyst.Conclusion MRI is one of the best examing methods for dia gnosiing of sacral meningeal cyst. Correct mastery of MR manifestations can not only help to give right dignosis, but also provide guidance for choices of clini cal treatment.

Spinal Extradural Meningeal Cyst: Case Report

The case of a 30-year-old woman with a spinal extradural meningeal cyst in the thoracolumbar region is reported. The cyst was detected in the retromedullary space between vertebra T12 and L3. A Dural defect was found in the operation field and through the defect, there was communication between the cystic cavity and the subarachnoid space. Closure of the defect, with partial resection of the cystic wall, was sufficient to obliterate the cystic cavity.

Sacral Perineural cyst: report of 3 cases / 대한정형외과학회잡지

Sacral perineural cyst is one group of extradural meningeal cyst at the sacral region. These lesions are distinguished from other spinal cysts because perineural cyst does not communicate with subarachnoidal space. Fluid filled cysts may compress adjacent nerve roots causing low back pain and sciatica which are dramatically improved by surgical excision. Differential diagnosis from other cysts can be accomplished by failure of collection of dye into cyst by initial myelography. C-T myelography rules out other mass lesions and often reveals communication of perineural cyst that filled with contrast medium. Magnetic resonance imaging well demonstrates three dimensinnal configures of an intraspinal cystic mass in initial study. However it is important to recognize that these cysts are one of causes of radiculopathy. We report three cases of sacral perineural cysts with radiculopathy.

Sacral Spinal Meningeal Cyst(Perineurial Cyst): A Case Report

We experienced a rare case of sacral meningeal cyst so called sacral perineurial cyst(Tarlov cyst). A 15 years old girl was admitted to the hospital because of sudden severe low back pain and Lt. sciatica for about one week. We performed delayed myelography and spinal computeized tomographic myelography(C.T.M) for differential diagnosis. Delayed filling of contrast media in the cyst was significant in diagnosis of sacral meningeal cyst type II. Laminectomy of sacrum(S1) was performed for partial excision of cystic wall and plastic suture. Operative finding was typical sacral perineurial cyst(Tarlov cyst) which was recently clssified as sacral meningeal cyst type II. The classification of spinal meningeal cysts in the literature was indistinct and confused. We also agree with Nabors et. al, in current classificcation of spinal meningeal cysts, in which the spinal meningeal cysts, in which the spinal meningeal cysts were divided into 3 groups as extradural spinal Mcs Type I(Diverticulum), Type II(perineurial cyst), intradural spinal Mcs(arachnoid cyst).