Cerebral ependymal cysts are very rare. About 30 cases have been reported in the literature. They mimic arachnoid cysts clinically and on imaging studies but are different from arachnoid cysts in pathological findings. They are believed to arise by the sequestration of a small segment of the primitive ependymal lining into either the cortical mantle or the perimedullary mesh. They occupy the central white matter of the frontal or temporoparietal lobes. The authors describe a case of septate ependymal cyst involving left sylvian fissure. The clinicopathological features, treatment, and results of previously reported cases are reviewed, and the etiology and pathogenesis of these cysts are discussed.
Arachnoid Cysts

No abstract available.
Arachnoid Cysts* ; Arachnoid* ; Humans

An intradural arachnoid cyst is a relatively rare condition. Idiopathic arachnoid cysts are rare lesions that are not associated with trauma or other inflammatory insults. This report describes one case of an idiopathic arachnoid cyst treated by posterior laminectomy and an excision of the mass with a brief review of the relevant literature.
Arachnoid Cysts ; Arachnoid* ; Laminectomy

The authors report two races of Arachnoid cysts located at the septum Lucidum. The presenting signs are those of Intracranial hypertension with cephalalgia and disc edema of the retina. The diagnosis can only be made by CT scanner with a cyst having the same density as the ventricular cerebro spinal fluid, and located at the “septum lucidum” between the lateral ventricles-surgery by transcallosal approach is indicated when appears the intracranial hypertension syndrome.
Arachnoid cysts ; diagnosis

Intracranial arachnoid cysts are uncommon congenital lesions of considerable interest and importance, the origins and exact nature of which remain uncertain. They account for about 1% of all intracranial space-occupying lesions4). Its predilection sites are in the sylvian fissure, the interhemispheral fissure, the cerebral convexity, the base of the brain, and over the midline of the cerebellum in the posterior fossa6)11). We are reporting a case of arachnoid cyst, developed in the left sylvian fissure in a ten years old male patient.
Arachnoid ; Arachnoid Cysts* ; Brain ; Cerebellum ; Humans ; Male

Multiple extradural arachnoid cysts of the spine are extremely uncommon in children with only a few cases reported. The authors report a case of multiple extradural spinal arachnoid cysts in children with a review of the relevant literature.
Arachnoid ; Arachnoid Cysts ; Child ; Humans ; Spine

Since October 1993 to October 1995, 11 cases of arachnoid cysts in infant of 2 months -14 years old were operated on at the neurosurgical dep of Hanoi Saint-Paul hospital. Results: excellent and good results: 7/11. Relative: 4/11 No death was reported. The author presents an analysis of detailed clinical signs, anotomo - pathology for clinical diagnosis and surgical treatment, and the method of choice for the treatment. The diagnosis must be made early by CT scaning or Echography.
Intracranial Arachnoid Cysts ; child ; surgery

Arachnoid cysts are usually classified as developmental anomaly, inflammatory and traumatic in origin. Arachnoid cyst in posterior fossa occur frequently in the midline posterior to the cerebellum. These cyst usually present symptoms and signs due to increased intracranial pressure and may be confused with cerebellar or fourth ventricular tumor. Recently we had experienced a case of multiple retrocerebellar arachnoid cysts coexisted with pathologically confirmed desmoplastic medulloblastoma in eight months lod infant and reviewed the literatures.
Arachnoid Cysts* ; Arachnoid* ; Cerebellum ; Humans ; Infant ; Intracranial Pressure ; Medulloblastoma*

The anterior middle fossa is the most common location of benign intracranial arachnoid cysts. In the adult, headache, temporal bulging, and mild proptosis are the usual presenting complaints, although seizures and contralateral weakness have been described. Bitemporal hemianopsia associated with this lesion has not been noted previously. Herein we describe the patient with bitemporal hemianopsia associated with sylvian fissure arachnoid cyst. Cystoperitoneal shunt was beneficial. The etiology, histology, and suggested therapy of other patient with arachnooid cyst are also discussed.
Adult ; Arachnoid Cysts ; Arachnoid* ; Exophthalmos ; Headache ; Hemianopsia* ; Humans ; Seizures

Spinal extradural arachnoid cysts usually cause symptoms related to spinal cord or nerve root compression. Here, we report an atypical presentation of a spinal extradural arachnoid cyst combined with congenital hemivertebra which was presented as a retroperitoneal mass that exerted mass effects to the abdominal organs. On image studies, the communication between the cystic pedicle and the spinal arachnoid space was indistinct. Based on our experience and the literature of the pathogenesis, we planned anterior approach for removal of the arachnoid cyst in order to focus on mass removal rather than ligation of the fistulous channel. In our estimation this was feasible considering radiologic findings and also essential for the symptom relief. The cyst was totally removed with the clogged 'thecal sac-side' end of the cystic pedicle. The patient was free of abdominal discomfort by one month after the surgery.
Arachnoid ; Arachnoid Cysts ; Humans ; Ligation ; Radiculopathy ; Spinal Cord