21/30. Occult spinal dysraphism in the geriatric patient.Three patients in their seventies with occult spinal dysraphism are described. All three had tethered spinal cords, intrasacral meningoceles, and severe degenerative lumbar spondylopathy. The mechanism for the late development of symptomatology is related to an acquired lesion, degenerative spinal stenosis.- - - - - - - - - - ranking = 1keywords = meningocele (Clic here for more details about this article) |
22/30. Cervical occult spinal dysraphism: MRI findings and the value of a vascular birthmark.spinal dysraphism is easily recognized in the overt form as a meningocele or myelomeningocele. The closed form or occult spinal dysraphism (OSD) can be overlooked. It occurs predominantly at the lumbosacral level, but OSD at the cervical level, although very rare, also occurs. The value of magnetic resonance imaging investigations in preparation for surgical treatment is emphasized. We discuss the value of various midline posterior skin anomalies as indicators of an underlying developmental defect in the neural axis. Hallmarks for OSD in the inferior third of the back are well known. They can also occur at the cervical level. Among these warning cutaneous midline changes, a vascular stain alone is rarely a clue for OSD whatever the spinal level involved, and specifically in the nuchal area.- - - - - - - - - - ranking = 2keywords = meningocele (Clic here for more details about this article) |
23/30. Human tail associated with lipomeningocele--case report.A 3-month-old boy presented with a tail associated with lipomeningocele. Computed tomography and magnetic resonance imaging clearly demonstrated the presence of spina bifida and lipoma continuous from the tail to the thickened conus medullaris. The human tail may be related to spinal dysraphism and requires detailed neuroimaging investigation, and possibly microsurgery to prevent the tethered cord syndrome.- - - - - - - - - - ranking = 5keywords = meningocele (Clic here for more details about this article) |
24/30. Pathogenesis of diastematomyelia and spina bifida.Three cases of spina bifida (SB) associated with diastematomyelia (DM) are described and possible differences in pathogenesis are discussed. The frequent simultaneous occurrence of both malformations and the possibility that the cord can be split above, at the level of or below the SB indicate a common pathogenesis for SB and DM. Splitting of the cord symmetrically, asymmetrically, bilateraly or even antero-posteriorly can be explained only by the existence of a destructive phenomenon which is responsible for the bifurcation of the neural tube or its anlage. The existence of such a phenomenon indicates that myelocele can develop due to re-opening of a previously closed neural tube. meningocele may be a manifestation of early embryonic antero-posterior DM in which the anterior tubule develops into an almost normal spinal cord, whereas the posterior tubule provides the wall of the cystic sac of meningocele in which most or all the neural tissue undergoes fibrous replacement.- - - - - - - - - - ranking = 1keywords = meningocele (Clic here for more details about this article) |
25/30. Paravertebral lumbar myelomeningocele: a report of three cases.Three cases of lateral myelomeningocele in the lumbar region are reported because of their rarity. It is stressed that in these laterally placed cystic swellings spinal dysplastic conditions should be also considered. The literature is briefly reviewed.- - - - - - - - - - ranking = 5keywords = meningocele (Clic here for more details about this article) |
26/30. dermoid cyst within an upper thoracic meningocele.A case of dermoid cyst within an upper thoracic meningocele is reported. The incidental feature of this combination is extremely rare. As upper thoracic meningocele is often associated with other spinal and intracranial abnormalities, close observation and radiologic evaluation of the craniospinal axis are necessary to obtain an exact diagnosis and to achieve an appropriate treatment.- - - - - - - - - - ranking = 6keywords = meningocele (Clic here for more details about this article) |
27/30. Occult intrasacral meningocele associated with spina bifida: a case report.We present a rare case of occult intrasacral meningocele associated with spina bifida and tethered cord syndrome in a 13-year-old female. The etiology is thought to be due to a dysraphic disorder. The pertinent literature is reviewed.- - - - - - - - - - ranking = 5keywords = meningocele (Clic here for more details about this article) |
28/30. Terminal myelocystocele--a case report.Terminal myelocystocele is a rare form of occult spinal dysraphism in which the hydromyelic caudal spinal cord and the subarachnoid space are hemiated through a posterior spina bifida. A 1.5 month old boy presented with a large lumbosacral mass and urinary incontinence. The magnetic resonance imaging, operative findings and pathological findings revealed a low lying conus with a dilated central canal dorsally attached to the subcutaneous tissue. Ventral subarachnoid space was enlarged and herniated through the laminar defect of the sacrum. The lesion was typical of a terminal myelocystocele. The clinical features are different from those of myelomeningocele in many aspects. Though the incidence is low, terminal myelocystocele should be included in the differential diagnosis of congenital lesions presenting as a lumbosacral mass.- - - - - - - - - - ranking = 1keywords = meningocele (Clic here for more details about this article) |
29/30. Split notochord syndrome with prolapsed congenital colostomy.A case of split notochord syndrome associated with a prolapsed colostomylike dorsal enteric opening, a foreshortened colon, imperforate anus, and meningocele is presented. The surgical management of this disorder is discussed and available literature is reviewed. The patient was successfully treated with a combined, single-stage surgical correction.- - - - - - - - - - ranking = 1keywords = meningocele (Clic here for more details about this article) |
30/30. Intradural spinal teratoma: evidence for a dysembryogenic origin. Report of four cases.Intradural spinal teratoma is a rare tumor that can be associated with dysraphic defects. Although the origin of these tumors is traditionally thought to be secondary to primordial germ cells misplaced early in embryogenesis, the pathogenesis of intraspinal teratoma remains unclear. The authors present a series of patients in whom an intradural teratoma arose at the same site as a developmental spinal cord abnormality, including a split cord malformation, myelomeningocele, and lipomyelomeningocele. It is postulated that these lesions were the result of a dysembryogenic mechanism and were not neoplastic.- - - - - - - - - - ranking = 2keywords = meningocele (Clic here for more details about this article) |
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