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*

Adult ; Arachnoid Cysts ; complications ; Female ; Humans ; Intracranial Aneurysm ; etiology

The authors operated 17 cases out of 28 intracranial arachnoid cysts experienced from July, 1972 to August, 1981. The clinical analysis and surgical experiences were summarized as follows. The supratentorial cysts were 67.9% and the infratentorial cysts were 32.1% of the intracranial arachnoid cysts. The predilection sites were middle cranial fossa of the supratentorial(60.7%) and the inferior midline of the infratentorial(17.9%). 2) The middle fossa arachnoid cysts were prominent in males under the age of 20. 3) The common complicating lesions in the supratentorial arachnoid cysts were chronic subdural hematoma(23.5%) and subdural hygroma(5.9%). Hydrocephalus was usually combined with the infratentorial arachnoid cyst(66.7%). 4) The most frequent symptom was headache(75%) with similar frequency in both supratentorial and infratentorial lesions. In the supratentorial cysts, headache was also complained with highest frequency even in cases without increased intracranial pressure(61.5%). The main clinical features of arachnoid cysts were headache, signs of increased intracranial pressure, other neurologic deficits and seizure in order of frequency. 5) Cranial deformities on the plain X-ray films were observed in 70.6% of middle fossa cysts. The brain CT scan provided a definite diagnostic information, while the cerebral angiography offered clues for differential diagnosis. 6) The authors selected the direct intracranial approach as a curative measure in most cases and the essential step in this procedure was thought to establish a communication between the cyst and the basal cistern or adjacent subarachnoid space. But in a few special cases such as deep-seated cysts or extensively large ones, a cystoperitoneal shunt was a more preferable procedure. The infratentorial cysts with hydrocephalus almost always required ventriculoperitoneal shunt in our cases. We considered it is very important to perform periodic follow-up brain CT scan to detect a recurrence of cyst or recollection of C.S.F., postoperative complications and persistent hydrocephalus.
Arachnoid ; Arachnoid Cysts* ; Brain ; Cerebral Angiography ; Congenital Abnormalities ; Cranial Fossa, Middle ; Diagnosis, Differential ; Headache ; Humans ; Hydrocephalus ; Intracranial Pressure ; Male ; Neurologic Manifestations ; Postoperative Complications ; Recurrence ; Seizures ; Subarachnoid Space ; Tomography, X-Ray Computed ; Ventriculoperitoneal Shunt ; X-Ray Film

CSF shunting procedures are widely employed in the treatment of hydrocephalus and other disturbances of the dynamics of CSF such as a rachnoid cyst and syrinx. The relative simplicity of this operation with respect to other neurosurgical procedures is matched by a high incidence of complications. Many kinds of shunt devices have been developed to reduce complications. Yet, this operation frequently requires surgical revision. Traditional shunts were primarily designed to manage hydrocephalus by regulating intracranial pressure. Those devices, in some circumstances, can cause to underdrain or overdrain CSF and may need a surgical revision to adjust the pressure Authors have treated 28 patients with the disturbaces of CSF dynamics using pressuread justable valve system (Codman-Medos p rogrammable Hakim valve system). Two patients had arachnoid cysts and the others had hydrocephalus with various etiologies. Subdural hygroma was developed in 5 patients and underdrainage was observed in 9 patients on CT scan. By adjusting the pressure, Authors achieved clinical improvements without a need for surgical revision. The optimum pressure was 97.4+17.4mmHO for the patients with hydrocephalus with various etiologies in adults. In conclusion, the incidence of shunt revision by using this shunt device for the treatment of hydrocephalus and arachnoid cysts was decreased.
Adult ; Arachnoid Cysts ; Humans ; Hydrocephalus ; Incidence ; Intracranial Pressure ; Lymphangioma, Cystic ; Neurosurgical Procedures ; Reoperation ; Subdural Effusion ; Tomography, X-Ray Computed ; Ventriculoperitoneal Shunt*

Seckel syndrome is a rare autosomal recessive disorder characterized by low birth weight, short but proportionate stature, microcephaly, moderate to severe mental retardation and typical facial features mimicking bird including receding forehead and chin, a prominent beaked nose and large eyes. A number of CNS anomalies have been reported in literature that are mental retardation, seizures, pachygyria, arachnoid cysts, large basal ganglia, agenesis of corpus callosum, hypoplasia of cerebellar vermis and cerebral aneurysms. Our patient had seizures, microcephaly, mental retardation and CNS anomalies, including diffuse cerebral dysgenesis, pachygyria and partial agenesis of corpus callosum. We report a case of Seckel syndrome with CNS anomalies and a follow up visit at 5 years later
Agenesis of Corpus Callosum ; Animals ; Arachnoid Cysts ; Basal Ganglia ; Beak ; Birds ; Chin ; Eye ; Follow-Up Studies ; Forehead ; Humans ; Infant, Low Birth Weight ; Infant, Newborn ; Intellectual Disability ; Intracranial Aneurysm ; Lissencephaly ; Malformations of Cortical Development ; Microcephaly ; Nose ; Seizures

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