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Biomedical subjects

E Schijman

Publications and source records attributed to E Schijman.

8 recordsLinked to original sources
PubMed1990

Choroid plexus papillomas of the III ventricle in childhood. Their diagnosis and surgical management.

Ten infants and children with choroid plexus papilloma of the III ventricle are presented. Hydrocephalus of various degrees was present in all patients, and seven patients had bilateral ventriculoperitoneal shunts prior to craniotomy. All patients were investigated with computed tomography and angiography. Tumor was resected through the transfrontal-transventricular approach in nine and through a transcallosal approach in one. One patient died intraoperatively due to an uncontrollable hemorrhage from a subependymal vein at its point of entry into the homolateral internal cerebral vein, and another died shortly after surgery due to hypothalamic trauma. The remaining eight patients are alive without recurrence over a minimum follow-up period of 3 years; three have mental retardation and seizure disorder. Despite this tumor's deep location and vascularity and occurrence in infancy, choroid plexus papillomas of the III ventricle can be successfully resected. Appropriate care for hydrocephalus and intra- and postoperative management are important.

Cerebral Angiography↗
PubMed1989

Microsurgical anatomy of the transcallosal approach to the ventricular system, pineal region and basal ganglia.

Vascular and neoplastic lesions of the lateral and III ventricles, the pineal region, or the basal ganglia affect highly critical areas. For surgical treatment of these lesions, the interhemispheric, transcallosal approach was studied in our laboratory in an attempt to evaluate the surgical procedure. The advantages and disadvantages are described in comparison with those for other approaches in the same regions. To this end, we dissected 20 anatomical specimens interhemispherically using the surgical microscope (with a magnification of 6 x to 25 x); the specimens were fixed for 6-8 weeks in formaldehyde 10%). In each specimen the corpus callosum was exposed and then sectioned to a length of 2 to 2.5 cm over its anterior, middle, and posterior thirds. The anatomy of the lateral and III ventricles and of the pineal region was explored; the arrangement configuration of the anterior cerebral arteries and their branches was also evaluated, as were the thalamostriate and other subependymal veins, the internal cerebral veins, the choroid plexus, the trigone, and the septum pellucidum.

Basal Ganglia↗
PubMed1986

Congenital dermal sinuses, dermoid and epidermoid cysts of the posterior fossa.

Dermal sinuses are abnormal communications between the skin and deeper tissues. Seven cases are presented of occipital dermal sinuses associated with dermoid or epidermoid cysts of the posterior fossa. The cysts were interdural, subdural and intracerebellar. Although they are benign lesions, there is a high incidence of complications, especially infections such as bacterial or aseptic meningitis and cerebellar abscess. The clinical features, radiological and tomographical characteristics, and the relationship to meningeal structures, dural sinuses and cerebellar parenchyma are described.

Brain Abscess↗
PubMed1985

Hydatid cysts.

Explore the source record for details and available documents.

Cerebellar Diseases↗
PubMed1983

Giant arteriovenous aneurysm of the posterior fossa in a three-month-old infant.

A 3-month-old female infant presented a 20-day history of drowsiness and maturing deterioration. The neurological exam showed peripheric facial palsy on the right side and a brachiocrural hemiparesis on the left. A brain scan revealed a lesion of avascular content in the posterior fossa. The computed tomography scan showed hydrocephalus and a high-density lesion, nonenhanced after introduction of the contrast agent, compatible with a clot at posterior fossa level. Likewise, after contrast new images appeared which had not been seen previously, considered as afferent and efferent vascular elements to the lesion. The cerebral angiography showed an avascular lesion in the cerebellar vermis with important hypertrophy of arterial and venous elements, although no steal phenomena of neighbouring areas was evident. These findings, and the absence of cardiac failure, suggested the diagnosis, confirmed by surgery, of giant clotted arteriovenous malformation. The patient has done well postoperatively.

Cerebellar Diseases↗