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M Gelabert

Publications and source records attributed to M Gelabert.

At least 19 recordsLinked to original sources
PubMed2003

[Spontaneous spinal epidural hematomas: review of 8 cases].

INTRODUCTION: Spontaneous spinal epidural hematoma is a rarely occurring condition. The clinical importance of compressive spinal hematoma is due to its acute and progressive course that can lead to permanent and irreversible neurological deficits if not treated early. Clinical presentation is characterized by acute radicular pain followed by cord compression syndrome. METHODS: We review eight cases of spontaneous spinal epidural hematomas diagnosed in our neurosurgical service in the last 16 years. Attention was focused on gender, age, medical history, level of the hematoma, preoperative neurological condition, operation interval and postoperative results. RESULTS: The median age of patients was 63.5 years. A total of five patients were female and three male. The most frequently described symptoms before admission were acute vertebral pain followed by cord compression syndrome. In the MRI, six cases were isointense in T1-weighted images and hyperintense in T2-weighted images. In seven patients a laminectomy with clot removal was performed. CONCLUSIONS: The most important prognostic factors for recovery after spontaneous spinal epidural hematoma are the level of preoperative neurological deficit and the time to surgical operation.

Aged↗
PubMed2000

[Schwannoma of the olfactory groove].

Solitary schwannomas arising from the olfatory groove are extremely rare. Only 15 other cases have been reported so far. A case of olfatory groove schwannoma in a 19-year-old man with seizures and without neurological deficits is described. CT scan and MRI showed a tumour in the left frontobasal region. Left frontal craniotomy and excision of the tumour revealed a tumour in the region of the olfatory groove attached to the cribiform plate. The pathology, origin, and clinical characteristics of olfatory groove schwannomas are reviewed.

Adult↗
PubMed1998

Epithelial cell hyperproliferation after biliopancreatic reflux into the esophagus of rats.

BACKGROUND: Chronic reflux of duodenal contents into the esophagus of rats produces severe esophagitis and exerts a co-carcinogenic effect on the proliferating cells by enhancing the formation of nitrosamine-induced esophageal carcinomas. We investigated the effect of the different components of the duodenal reflux on the epithelial cell proliferation of the lower esophagus. METHODS: Sprague-Dawley rats underwent three surgical reflux models (biliopancreatic, pancreatic, and biliary) and a sham operation. Animals were sacrificed at 72 hours, 6 weeks, and 9 weeks after the operation. Histology and cell proliferation, determined by ornithine decarboxylase activity, polyamine (putrescine, spermidine, spermine) levels, and proliferating cell nuclear antigen labeling index of the basal and suprabasal layers, were studied in the distal esophagus. RESULTS: Both biliopancreatic and pancreatic reflux induced severe esophagitis starting on week 6. Suprabasal proliferating cell nuclear antigen labeling index significantly increased throughout the 9 weeks of the study in the biliopancreatic and pancreatic reflux groups, although this increase was earlier in the former group. Ornithine decarboxylase activity and polyamine levels were significantly increased in the biliopancreatic and pancreatic groups on week 6, decreasing on week 9. CONCLUSIONS: Increased esophageal cell proliferation after both biliopancreatic and pancreatic reflux into the lower esophagus may therefore be one mechanism by which duodenal-content reflux stimulates esophageal carcinogenesis in experimental animals.

Animals↗
PubMed1998

[Hypodense meningioma. A care report].

INTRODUCTION: Meningiomas are benign tumours which originate in the arachnoid layer and are characterized by being iso- or hyper-dense on computerized axial tomography (CAT). Hypodense meningiomas are relatively infrequent and normally behave thus because of their fat content. A hypomeningioma is almost entirely composed of adipose tissue. However, a meningiotheliomatous meningioma with fatty degeneration, which is the case being considered, is characterized by zones of meningiotheliomatous cells together with zones of adipocytes. CLINICAL CASE: We present the case of a 73 year old woman with a meningiotheliomatous meningioma with extensive fatty degeneration which on CAT scan showed as a hypodense lesion, with well-defined edges, which took up contrast heterogeneously and produced a hyperosfosant reaction. On magnetic resonance (RMN) it gave signals of heterogeneous intensities. Up to the present time, only four cases of pure lipomeningiomas have been described in the literature. CONCLUSIONS: However, meningiomas with fatty degeneration are much more frequent. In this paper we discuss aspects of the differential diagnosis of meningiomas which behave as hypodense lesions on CAT scans.

Aged↗
PubMed1998

[Primary lymphoma of the central nervous system. Review of etiological factors].

INTRODUCTION: The primary lymphoma of the central nervous system are between 1 to 2% of all the brain tumors. The most important risk factor for the development of this kind of lesions is both acquired and congenital immunologic deficiency. METHODS AND RESULTS: In this paper we'll try to study the 13 cases of primary lymphomas of the central nervous system from etiological, epidemiological, clinic, diagnostic, therapeutic and outcome point of view. CONCLUSION: Besides we will discuss the bibliography founded paying special attention to diagnostic and therapeutic features.

Adolescent↗
PubMed1997

Acute bilateral extradural haematoma of the posterior cranial fossa.

Traumatic haematomas located in the posterior fossa are less frequent than those above the tentorium. Extradural haematomas are the most common type of haematomas in the posterior fossa and are usually unilateral. We present the case of a patient with a bilateral extradural haematomas of the posterior fossa and review eight cases previously reported in the literature.

Brain Concussion↗
PubMed1996

[Cervical intramedullary neurofibroma].

Spinal neurofibromas make up a third of all tumours of the medulla. They are usually found to be intradural and extramedullary. Exceptionally they may be intramedullar. We describe the case of a patient with signs of slowly progressive compression of the medulla, who was operated on surgically for an intramedullary neurofibroma, after imaging studies. We review the previously published cases and analyse the different histogenic theories concerning this tumour.

Female↗
PubMed1993

[15 years later].

Explore the source record for details and available documents.

Education, Nursing↗
PubMed1992

Sinus pericranii: radiological and etiopathological considerations. Case report.

Sinus pericranii is a rare vascular anomaly involving an abnormal communication between the extracranial and intracranial circulations. A case of frontal sinus pericranii is presented which appeared to be a posttraumatic sinus because it developed 2 years after a cranial injury. However, the presence of vascular endothelium in the pathological examination and its association with a vascular anomaly (persistent trigeminal artery) suggested a congenital origin. The lesion, pericranial blood sinuses, and bone were totally removed. The computerized tomography, angiography, and magnetic resonance imaging findings are presented. The literature is reviewed and the pathogenesis of sinus pericranii is discussed.

Adult↗
PubMed1990

Hydrocephalus and intraspinal tumor in childhood.

Hydrocephalus with spinal tumor is rare, and its cause is obscure. We report one patient with a thoracic astrocytoma who developed ventricular dilatation and intracranial hypertension. The pathophysiology is reviewed.

Astrocytoma↗
PubMed1988

Hydrocephalus and tuberculous meningitis in children. Report on 26 cases.

Hydrocephalus constitutes one of the most common complications of tuberculous meningitis. Twenty-six cases of tuberculous meningitis in children are reported. The authors analyze the clinical features, CT scan findings, and clinical evolution. The criteria for and results of the use of cerebrospinal fluid shunts are reviewed.

Cerebrospinal Fluid Shunts↗