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1.
Rev. argent. neurocir ; 34(3): 163-171, sept. 2020. ilus, graf, tab
Article in Spanish | LILACS, BINACIS | ID: biblio-1120874

ABSTRACT

Objetivos: Describir resultados de los últimos 11 años en el tratamiento de neuralgia del trigémino con termocoagulación por radiofrecuencia, analizar variables relacionadas a complicaciones y resultados. Material y Métodos: Estudio retrospectivo, descriptivo, longitudinal, comparativo y analítico. Se analizaron los resultados de los últimos 11 años de nuestro servicio evaluando las temperaturas de las lesiones armando dos grupos, de 65°C-70°C y 71°C-75°C para analizar su relación con resultados y complicaciones. Resultados: Se trataron 59 pacientes en los cuales se realizaron 74 procedimientos, la edad media fue 59.22 años (±13,45). Se observó recidiva en 23 procedimientos con una tasa global de 31%. El tiempo medio de recidiva fue de 28,19 meses (±26,21). El tiempo medio de seguimiento fue de 33,10 meses (±33,49). El tiempo medio de evolución del dolor, previo al primer procedimiento, fue de 5,35 años (±4,37). Analizando los grupos se observó que no existía relación significativamente estadística (p = 0,74) entre el grupo de pacientes de 65ºC-70ºC y el grupo de 71ºC-75ºC y recidiva. No se observó relación estadísticamente significativa entre el grupo de 65ºC-70ºC y el grupo de 71ºC-75ºC y tiempo de recidiva (p=0,12). Se observó más pacientes con hipoestesia inmediata en el grupo de pacientes de 65ºC-70ºC, sin significación estadística (p=0,47). Conclusión: La termocoagulación por radiofrecuencia de ganglio de Gasser es un procedimiento accesible, mínimamente invasivo que demostró buenos resultados y buen manejo del dolor con bajo índice de complicaciones.


Objectives: Describe results of the last 11 years in the treatment of trigeminal neuralgia with radiofrequency thermocoagulation, analyze variables related to complications and results. Methods: Retrospective, descriptive, longitudinal, comparative and analytical study. The results of the last 11 years of our service were analyzed by assessing the temperatures of the lesions by assembling two groups, 65° C-70° C and 71 ° C-75° C to analyze their relationship with results and complications. Results: 59 patients were treated in which 74 procedures were performed; the mean age was 59.22 years (± 13.45). Recurrence was observed in 23 procedures with an overall rate of 31%. The average recurrence time was 28.19 months (± 26.21). The average follow-up time was 33.10 months (± 33.49). The average time of pain evolution, prior to the first procedure, was 5.35 years (± 4.37). Analyzing the groups, it was observed that there was no significant statistical relationship (p = 0.74) between the group of patients from 65ºC-70ºC and the group from 71ºC-75ºC and recurrence. No statistically significant relationship was observed between the 65ºC-70ºC group and the 71ºC-75ºC group and recurrence time (p = 0.12). More patients with immediate hypoaesthesia were observed in the group of patients from 65ºC-70ºC, without statistical significance (p = 0.47). Conclusion: Gasser's ganglion radiofrequency thermocoagulation is an accessible, minimally invasive procedure that demonstrated good results and good pain management with a low complication rate


Subject(s)
Humans , Trigeminal Neuralgia , Temperature , Therapeutics , Trigeminal Ganglion , Electrocoagulation , Pain Management , Neuralgia
2.
Neuroradiology ; 60(1): 121, 2018 Jan.
Article in English | MEDLINE | ID: mdl-29103144

ABSTRACT

We note that the following data error was published in regard to patient numbers in the Results section 1.

3.
Rev. argent. neurocir ; 30(1): 23-26, mar. 2016. ilus, tab
Article in Spanish | LILACS | ID: biblio-835752

ABSTRACT

Objetivo: Presentar nuestra experiencia en el tratamiento de meningiomas del ángulo pontocerebeloso, desde 1972 a 2013. Material y Método: Se realizó un trabajo retrospectivo y descriptivo. Se incluyeron 8 casos de pacientes con meningiomas de ángulo pontocerebeloso, cuyas edades oscilaron entre 41 y 68 años; 7 de ellos fueron mujeres. Resultados: Se realizaron 8 cirugías de exéresis tumoral. En un paciente se realizó, además, radioterapia por presentar recurrencia. En 5 casos la resección fue total (Simpson 1 o 2) y en 3 fue parcial. Los primeros se localizaban todos a nivel posterior del complejo VII-VIII. Hubo un caso de muerte postquirúrgica por sepsis secundaria a un absceso de la cavidad operatoria. Conclusión: En los meningiomas de ángulo pontocerebeloso, principalmente en aquellos ubicados por detrás del conducto auditivo interno, la exéresis completa es posible y constituye un tratamiento capaz de controlar la enfermedad. La radioterapia sería una opción a considerar en un número limitado de enfermos.


Objective: To present our experience in the treatment of cerebellopontine angle (CPA) meningiomas from 1972 to 2013. Materials and Methods: A descriptive, retrospective study was performed involving eight patients (7 females) with a cerebellopontine angle meningioma, whose ages ranged from 41 to 68 years. Results: Tumor resection was performed in all eight patients, with one patient requiring subsequent radiotherapy for tumor recurrence. In five patients, resection was complete (Simpson 1 or 2), while only partial resection was achieved in three. The former lesions were all posterior to the VII-VIII complex. There was one death from post-surgical sepsis secondary to an abscess in the surgical cavity. Conclusions: With meningiomas of the CPA, and especially those located behind the internal auditory canal, complete excision is possible and treatment can control the disease. Radiotherapy is an option to consider in a limited number of patients.


Subject(s)
Humans , General Surgery , Meningioma , Radiotherapy
4.
Rev. neurol. (Ed. impr.) ; 59(1): 3-19, 1 jul., 2014. ilus, tab
Article in Spanish | IBECS | ID: ibc-124023

ABSTRACT

Objetivo. Presentar las características clínicas, de imagen y evolutivas de una serie de pacientes con neurofibromatosis tipo 1 que desarrollaron durante la infancia neurofibromas plexiformes voluminosos en el cuello (NFPVC). Pacientes y métodos. Nueve pacientes (cinco mujeres y cuatro varones) con edades entre 3 y 15 años en el momento del diagnóstico de los tumores, que podían extenderse también a la fosa posterior y a la zona torácica superior. El diagnóstico estuvo basado fundamentalmente en la clínica, la imagen y la histología. Resultados. Un tumor era intralaríngeo y causaba problemas respiratorios. Los otros ocho casos tenían su origen en varias raíces espinales de uno o de ambos lados y podían crecer también hacia el interior de la fosa posterior y de la región torácica en algunos pacientes, y desplazaban a las estructuras anatómicas vecinas, especialmente en tres casos, todos niñas, en las que el tumor creció hasta alcanzar gran volumen, especialmente por un lado, parándose el crecimiento entre los 11 y 12 años y no volviendo a crecer más tarde. Conclusiones. Los NFPVC son tumores histológicamente benignos. La extirpación es necesaria cuando están localizados en la laringe por los problemas respiratorios que causan, pero no en los de las otras regiones, pese a que el voluminoso tamaño que alcanzan en algunos casos puede causar exagerados desplazamientos de las estructuras vecinas. El estudio de nuestra serie parece indicar que al menos los tumores extralaríngeos sólo crecen hasta los 11-12 años. Puede ser recomendable retrasar la cirugía tanto como sea posible si no existe sintomatología aguda que la haga necesaria (AU)


Aim. To present the clinic, imaging and evolutive characteristics of a series of patients with neurofibromatosis 1 with voluminous plexiform neurofibromas in the neck (VPNFN) during childhood. Patients and methods. Nine patients (five females and four males) who were diagnosed as VPNFN at ages between 3 and 15 years. The VPNFN widespread to the posterior fossa or the upper thoracic region in some cases. The diagnosis was based on the clinical, imaging and histological findings. Results. One of the tumors was intralaryngeal and caused respiratory difficulties. The other eight patients had the origin of the tumor in several spinal roots of one or both sides and could growth to the posterior fossa and to the upper thoracic region in some cases with displacement of the surrounding organs, especially in three patients, all girls, in whom the tumor reached a voluminous size on one side, that was observed only until 10 to 11 years when the growth ceased. Conclusions. The VPNFN are histologically benign tumors. Those located in the larynx must be removed because of therespiratory problems, but it is not necessary in cases with other locations despite the voluminous size that can reach in some patients with great displacement of the surrounding organs. The analysis of the results of our series may demonstrate that al least the extralaryngeal tumors only grow to 11-12 years of age. This possibility may make recommendable to retard the surgical treatment as much as possible in cases that it is not necessary (AU)


Subject(s)
Humans , Male , Female , Child, Preschool , Child , Adolescent , Neurofibromatosis 1/pathology , Neurofibroma, Plexiform/pathology , Head and Neck Neoplasms/pathology , Laryngeal Neoplasms/pathology , Spinal Nerve Roots/pathology , Mediastinal Neoplasms/pathology , Neurocutaneous Syndromes/pathology
5.
Rev Neurol ; 59(1): 13-9, 2014 Jul 01.
Article in Spanish | MEDLINE | ID: mdl-24965926

ABSTRACT

AIM. To present the clinic, imaging and evolutive characteristics of a series of patients with neurofibromatosis 1 with voluminous plexiform neurofibromas in the neck (VPNFN) during childhood. PATIENTS AND METHODS. Nine patients (five females and four males) who were diagnosed as VPNFN at ages between 3 and 15 years. The VPNFN widespread to the posterior fossa or the upper thoracic region in some cases. The diagnosis was based on the clinical, imaging and histological findings. RESULTS. One of the tumors was intralaryngeal and caused respiratory difficulties. The other eight patients had the origin of the tumor in several spinal roots of one or both sides and could growth to the posterior fossa and to the upper thoracic region in some cases with displacement of the surrounding organs, especially in three patients, all girls, in whom the tumor reached a voluminous size on one side, that was observed only until 10 to 11 years when the growth ceased. CONCLUSIONS. The VPNFN are histologically benign tumors. Those located in the larynx must be removed because of the respiratory problems, but it is not necessary in cases with other locations despite the voluminous size that can reach in some patients with great displacement of the surrounding organs. The analysis of the results of our series may demonstrate that al least the extralaryngeal tumors only grow to 11-12 years of age. This possibility may make recommendable to retard the surgical treatment as much as possible in cases that it is not necessary.


TITLE: Neurofibromas plexiformes voluminosos de cuello en la neurofibromatosis tipo 1.Objetivo. Presentar las caracteristicas clinicas, de imagen y evolutivas de una serie de pacientes con neurofibromatosis tipo 1 que desarrollaron durante la infancia neurofibromas plexiformes voluminosos en el cuello (NFPVC). Pacientes y metodos. Nueve pacientes (cinco mujeres y cuatro varones) con edades entre 3 y 15 años en el momento del diagnostico de los tumores, que podian extenderse tambien a la fosa posterior y a la zona toracica superior. El diagnostico estuvo basado fundamentalmente en la clinica, la imagen y la histologia. Resultados. Un tumor era intralaringeo y causaba problemas respiratorios. Los otros ocho casos tenian su origen en varias raices espinales de uno o de ambos lados y podian crecer tambien hacia el interior de la fosa posterior y de la region toracica en algunos pacientes, y desplazaban a las estructuras anatomicas vecinas, especialmente en tres casos, todos niñas, en las que el tumor crecio hasta alcanzar gran volumen, especialmente por un lado, parandose el crecimiento entre los 11 y 12 años y no volviendo a crecer mas tarde. Conclusiones. Los NFPVC son tumores histologicamente benignos. La extirpacion es necesaria cuando estan localizados en la laringe por los problemas respiratorios que causan, pero no en los de las otras regiones, pese a que el voluminoso tamaño que alcanzan en algunos casos puede causar exagerados desplazamientos de las estructuras vecinas. El estudio de nuestra serie parece indicar que al menos los tumores extralaringeos solo crecen hasta los 11-12 años. Puede ser recomendable retrasar la cirugia tanto como sea posible si no existe sintomatologia aguda que la haga necesaria.


Subject(s)
Head and Neck Neoplasms/pathology , Neurofibroma, Plexiform/pathology , Neurofibromatosis 1/pathology , Adolescent , Child , Child, Preschool , Cranial Fossa, Posterior/pathology , Disease Progression , Female , Head and Neck Neoplasms/genetics , Head and Neck Neoplasms/surgery , Humans , Laryngeal Neoplasms/genetics , Laryngeal Neoplasms/pathology , Laryngeal Neoplasms/surgery , Laryngectomy/methods , Magnetic Resonance Imaging , Male , Neurofibroma, Plexiform/genetics , Neurofibroma, Plexiform/surgery , Tumor Burden
6.
Rev. argent. neurocir ; 28(2): 63-67, mayo 2014. ilus
Article in Spanish | LILACS | ID: biblio-998544

ABSTRACT

OBJETIVO: presentar nuestra experiencia en cirugía de epilepsia con electrocorticografía intraoperatoria, en 19 pacientes. MATERIAL Y MÉTODO: estudio retrospectivo basado en historias clínicas de pacientes con epilepsia lesional operados en el Sanatorio Allende, de Córdoba, entre el 1 de diciembre de 1997 y el 30 de noviembre de 2013. En esta serie hubo 14 enfermos menores de 20 años y sólo 5 mayores de esa edad. Las lesiones fueron: en 10 (52,6%) displasias corticales, en 6 (31,5%) tumores, en 2 gliosis cicatrizal y en 1 cavernoma frontal. La localización fue temporal en 4 (21%) y extratemporal en 15 (79%). Tenían epilepsia refractaria 13 (67,3%) enfermos. RESULTADOS: el tratamiento fue satisfactorio si analizamos el control de las crisis. Actualmente 14 (73,6%) están libres de crisis, sólo 4 de ellos tienen un EEG anormal, por lo cual continúan medicados. De los 5 (26,4%) enfermos que continúan con crisis, 3 tienen episodios esporádicos y tienen una sola medicación; los otros 2 tienen crisis frecuentes por lo cual reciben 3 fármacos antiepilépticos. CONCLUSIÓN: la electrocorticografía intraoperatoria nos ha permitido identificar con precisión el foco epileptógeno, que en muchos casos esta adyacente o distante de la lesión


INTRODUCTION: to present our experience in epilepsy surgery with intraoperative electrocorticography in 19 patients. MATERIAL AND METHOD: retrospective study based on clinical records of patients with epilepsy operated on between December 1997 and November 2013 in Sanatorio Allende of Córdoba. In this series there were 14 patients younger than 20 years. Included: 10 (52,6) cortical displeases, 6 (31,5%) tumours, 2 cicatricial gliosis, and 1 cavernoma. The localization was temporal in 4 (21%), and extratemporal in 15 (79%). Thirteen (67,3%) patients had medically intractable epilepsies. RESULTS: in terms of epilepsy, surgical treatment with intraoperative electrocorticography was satisfactory. At the present: 14(73%) are free of seizures; only 4 had abnormal EEG and go on with anticonvulsive medication. Five patients to remain with epilepsy, only 2 of them had frequent crisis and required three anticonvulsive drugs. CONCLUSION: the intraoperative electrocorticography permitted to identify the epileptogenic area with accuracy. This area may be situated adjacent or distant to the primary lesion


Subject(s)
Humans , Epilepsy , Drug Resistant Epilepsy , Electrocorticography , Gliosis , Neoplasms
7.
Rev. argent. neurocir ; 27(4): 136-139, dic. 2013. ilus
Article in Spanish | LILACS | ID: biblio-982817

ABSTRACT

Introducción: la osteopetrosis es una rara enfermedad de origen genético, causada por una disminución en la resorción del tejido óseo, pudiendo ser autosómica dominante (benigna) o autosómica recesiva (maligna). Por su afectación craneal puede causar un severo compromiso neurológico (ceguera, parálisis facial, hipoacusia, hipertensión intracraneal, entre otros). El tratamiento incluye el uso de Interferon gamma, el transplante de médula ósea y la cirugía.Descripción del caso: presentamos una paciente de 32 años con osteopetrosis de tipo autonómico dominante asociada a malformación de Chiari I. La misma presentaba cefalea, síndrome cerebeloso, cuadriparesia, disartria, hipoacusia e hipertensión arterial, con edema de papila bilateral. Se realizó una cirugía de descompresión suboccipital, con laminectomía de C1 y duroplastia. Resultados: la paciente tuvo una franca mejoría, la cual mantiene tras 5 años de seguimiento. Continúa tatamiento con Interferon Gamma, Calcitriol y Carbamacepina.


Introduction: osteopetrosis is a rare genetic disease, caused by a decrease in bone resorption. It may be autosomal dominant (benign) or autosomal recessive (malignant). Due to cranial involvement it can cause severe neurological deterioration (blindness, facial paralysis, hearing loss, intracranial hypertension). Treatment includes the use of gamma interferon, bone marrow transplantation and surgery. Case Presentation: we present a 32 year old patient with autosomal dominant osteopetrosis type associated with Chiari I Malformation. She had headaches, cerebellar syndrome, quadriparesis, dysarthria, hearing loss and arterial hypertension, with bilateral papilledema. We conducted a suboccipital decompression surgery with C1 laminectomy and duroplasty. Results: the patient had a marked improvement, which remains after 5 years of follow up. She continues treatment with Interferon Gamma, Calcitriol and Carbamazepine.


Subject(s)
Humans , Adult , Arnold-Chiari Malformation , Osteopetrosis
8.
J. bras. neurocir ; 24(3): 220-223, 2013.
Article in English | LILACS | ID: lil-726514

ABSTRACT

Objetivo: Apresentar nossa experiência no tratamento de hemangioblastomas. Material e Método: Foram analisados dezpacientes (6 homens e 4 mulheres, na faixa entre 4-75 anos) com hemangioblastoma esporádico localizado no cerebelo (8pacientes), lobo occipital esquerdo (1 paciente) e tronco encefálico (1 paciente). Nove pacientes receberam tratamento cirúrgicoe em um paciente foi realizada a radiocirurgia estereotáxica, devido à sua localização no tronco encefálico, sendo clinicamentecontra-indicando a cirurgia. Resultados: Um paciente de 4 anos apresentou recorrência pós-ressecção subtotal, sendo operado10 anos depois devido a crescimento tumoral. Dois pacientes evoluíram para óbito: um durante o período pós-operatórioimediato por intensa hemorragia gastrointestinal e infarto do miocárdio 25 anos após a cirurgia. No acompanhamento final, osdemais 8 pacientes apresentavam condições neurológicas normais e com “vida normal”, inclusive aquele sujeito à radiocirurgiaestereotáxica de tronco encefálico. A taxa de sobrevida destes pacientes foi de 1-16 anos.


Subject(s)
Diffusion , Hemangioblastoma , Radiosurgery , Spectrum Analysis
9.
J. bras. neurocir ; 23(4): 328-331, 2013.
Article in English | LILACS | ID: lil-699465

ABSTRACT

Introdução: Epilepsia não-lesional ou epilepsia sem alteração na ressonancia magnética é caracterizada pela ausência de um foco potencialmente epileptogênico.Nesta situação, procedimentos cirúrgicos são mais complexos e mais desafiadores. Relato do caso: Um paciente de 6 anos e 8 meses apresentava quadro de epilepsia refratária de início aos 8 meses: as crises eram predominantemente do tipo parciais complexas. Não havia sinais neurológicos focais, mas observavam-se alterações cognitivas, de comportamento e do aprendizado. O vídeo EEG mostrava foco temporo-ocipital esquerdo, com irradiação para a direita. A ressonancia magnética e o PET inter-ictal eram normais, embora o SPETC ictal mostrasse focos occipital esquerdo e temporal direito, este de provável propagação secundária. A ressecção do foco à esquerda foi realizada em dois tempos, com uso de eletrodos subdurais. O estudo anátomo-patológico mostrou displasia cortical tipo 1A. Na revisão de dois anos, o paciente apresentou apenas uma crise convulsiva anual, tendo apresentado melhora no comportamento e aprendizado, bem como melhora cognitiva. Conclusão: Neste caso de epilepsia refratária, sem alterações na RM, o SPETC foi essencial para a localização do foco epileptogênico.


Subject(s)
Electrodes , Epilepsy , General Surgery , Magnetic Resonance Spectroscopy , Tomography, Emission-Computed, Single-Photon
10.
Rev Neurol ; 55(9): 528-32, 2012 Nov 01.
Article in Spanish | MEDLINE | ID: mdl-23111991

ABSTRACT

INTRODUCTION: Neurofibromatosis type 1 (NF1) is one of the most frequent neurocutaneous syndromes. NF1 can be associated with intracranial tumors in any location, but only rarely in the corpus callosum. AIMS: To describe a case of NF1 presenting as a tumor of the corpus callosum and to carry out a review of the incidence of the tumors of corpus callosum in our series and in the literature. CASE REPORT: We present a child who was studied since 3 years of age because of complete NF1 clinical diagnostic criteria (without genetic study). He was studied by MR and magnetic resonance spectroscopy (MRS). MR study showed neurofibromatosis bright objects distributed over several regions of the cerebral hemispheres and cerebellum, a possible brain stem tumor (bulbar zone) and the splenium of the corpus callosum. The MRS of the brain stem tumor showed changes consistent with a low grade glial tumor. The patient was followed until 19-years of age without demonstrating any changes in the clinical features or the tumor size in both locations Only six cases of corpus callosum tumor in patients with NF1 have been published to date. CONCLUSIONS: We present a new case with tumor of the corpus callosum and NF1. The imaging characteristics and the clinical course were in favour of the benign nature of this type of tumor.


Subject(s)
Brain Neoplasms/genetics , Corpus Callosum/pathology , Glioma/genetics , Neurofibromatosis 1/diagnosis , Brain Neoplasms/chemistry , Brain Stem Neoplasms/chemistry , Brain Stem Neoplasms/genetics , Brain Stem Neoplasms/pathology , Cerebellar Neoplasms/chemistry , Cerebellar Neoplasms/genetics , Cerebellar Neoplasms/pathology , Child, Preschool , Choline/analysis , Creatinine/analysis , Disease Progression , Follow-Up Studies , Glioma/chemistry , Glioma/diagnosis , Glioma/pathology , Humans , Inositol/analysis , Magnetic Resonance Imaging , Male , Neoplasms, Multiple Primary/diagnosis , Neoplasms, Multiple Primary/genetics , Neoplasms, Multiple Primary/pathology , Neuraminic Acids/analysis , Neurofibromatosis 1/pathology , Nuclear Magnetic Resonance, Biomolecular , Psychomotor Performance , Tumor Burden
13.
Arch Argent Pediatr ; 110(4): 334-7, 2012 Aug.
Article in Spanish | MEDLINE | ID: mdl-22859329

ABSTRACT

Our objective is to present a series of 20 cases of children under 15 years operated on of intractable epilepsy in the last 12 years in Sanatorio Allende of Córdoba, based on medical records and follow up. Were included 8 patients with cortical dysplasias, 6 with tumors, 2 with Rasmüssen syndrome, 1 with mesial gliosis, 1 with porencephalic cyst, 1 with gliosis due to traumatic brain injury, and 1 with encephalitis history. Localization was temporal in 9 cases and extra-temporal in 11 cases (4 were frontal, 4 occipital, and 3 parietal). There was no surgical mortality. Patients with brain tumors present a satisfactory control over convulsive crises after tumor resection (Engel IA in 100%). Good results were also achieved in nontumor pathologies: 8 cases Engel IA, 1 Engel I B; 3 cases Engel III A, one IV A and other IV C.


Subject(s)
Epilepsy/surgery , Adolescent , Anticonvulsants/therapeutic use , Brain Neoplasms/complications , Brain Neoplasms/surgery , Child , Child, Preschool , Drug Resistance , Encephalitis/complications , Encephalitis/surgery , Epilepsy/etiology , Epilepsy/pathology , Female , Humans , Male
14.
Brain Dev ; 34(7): 563-9, 2012 Aug.
Article in English | MEDLINE | ID: mdl-21999966

ABSTRACT

Neurofibromatosis 1 (NF1) is a neurocutaneous syndrome that can be inherited as autosomal dominant or may appear due to a de novo mutation. We present 8 patients (5 M and 3 F) with sporadic or non-familial spinal neurofibromatosis 1 (non-FSNF1) associated with bilateral spinal neurofibromas involving all of the paraspinal nerves. To our knowledge, this is the first series of such association described in the literature. Their ages ranged from 6 months to 20 years (average 9.8 years) at the time of radiological diagnosis. This presentation appears to be earlier than in familial spinal neurofibromas in NF1 (FSNF1). Predisposition to malignancy probably is greater in the non-FSNF1 type. MRI studies were performed routinely in all patients with NF1 and these were complemented with MRI enhanced with gadolinium and repeated at different ages in cases with paraspinal tumors. Coronal views provided the best evidence for the presence of neurofibromas in every spinal nerve. The size of the tumors and the clinical complications increased with advancing age in most patients. Giant plexiform tumors were often seen in the cervico-thoracic region. Malignant peripheral nerve sheath tumors (MPNST) were found in one patient with a sciatic tumor and another patient died suddenly at home without necropsy or pathological study. Voluminous paraspinal neurofibromas can be at risk for malignancy. More frequent neuroimaging studies may be necessary for an earlier detection. Early surgical treatment to anticipate the occurrence of MPNST during surveillance could be an option. Bilateral spinal neurofibromas are found in both patients who inherited the NF1 and in those due to de novo mutations.


Subject(s)
Nervous System Neoplasms/pathology , Neurofibromatosis 1/pathology , Spine/pathology , Adolescent , Child , Child, Preschool , Female , Humans , Infant , Magnetic Resonance Imaging , Male , Nervous System Neoplasms/complications , Nervous System Neoplasms/diagnosis , Neurofibromatosis 1/complications , Neurofibromatosis 1/diagnosis , Neuroimaging , Young Adult
15.
J. bras. neurocir ; 23(1): 26-31, 2012.
Article in English | LILACS | ID: lil-655795

ABSTRACT

Objetivo: apresentar nossa experiência de 19 anos na abordagem dos oligodendrogliomas cerebrais do adulto. Material e método: Quinhentos e cinco pacientes portadores de tumor cerebral foram operados em nosso serviço no período de 19 anos : em 30 casos (5,9 %) o diagnóstico histopatológico foi oligodendroglioma; dos quais, só em 26 casos logrou-se fazer um bom acompanhamento pósoperatório . Resultados: Nos 26 doentes estudados, a idade oscilou entre 23 e 72 anos.O diagnóstico histológico mostrou 17 oligodendrogliomas puros e 9 oligoastrocitomas. Em 16 casos Ki67 foi igual ou menor que 5 %, e em 7 era maior que 5 %. Os cromossomos 1p e 19 q foram estudados em 12 enfermos, com codeleção positiva em dois pacientes e negativa nos 10 restantes.O tratamento foi a observação clínica em dois casos, cirurgia em 20. Tres deles receberam radioterapia com quimioterapia, e em apenas um enfermo foi realizada a braquiterapia com iodo125. Atualmente, 19 (73 %) estão vivos e 7 (27 %) faleceram. A sobrevida dos falecidos teve uma média de quatro anos e dois meses, e uma mediana de quatro anos e meio. A sobrevida dos 19 pacientes que ainda vivem está com uma média de sete anos e dois meses, e uma mediana de cinco anos e oito meses. Conclusão: considerando-se a pequena série de casos, entendemos que a melhor alternativa de tratamento é a remoção completa da lesão. Estudos prospectivos randomizados deverão sugerir a melhor forma de diagnóstico e prognóstico que justifique as alternativas de tratamento.


Subject(s)
Humans , Male , Female , Brain Neoplasms , Glioma , Oligodendroglioma
16.
Rev. argent. neurocir ; 25(2): 71-77, abr.-jun. 2011. ilus
Article in Spanish | LILACS | ID: lil-605494

ABSTRACT

Objetivo: presentar nuestra experiencia en el manejo de gliomas cerebrales de bajo grado (GCBG) en la infancia. Material y método: se incluyeron 30 niños menores de 15 años operados de GCBG entre 1982 y 2008 (17 varones y 13 mujeres). Resultados: las convulsiones fueron la principal manifestación clínica en 24 niños (80%). La IRM fue el método diagnóstico de elección. En 24 pacientes se realizó EEG en el pre-operatorio. Astrocitomas fibrilares y oligodendrogliomas fueron la variedad más frecuente (28/30). Las modalidades terapéuticas fueron: en 19 casos sólo resección tumoral , en 8 exéresis más radioterapia, en 2 casos radiocirugía estereotáctica intersticial con I125 y en un paciente sólo se trato la hidrocefalia. Fallecieron 3 niños (10%); un niño por sepsis (por infección de la derivación del LCR), 6 años y 6 meses después de la cirugía; otro paciente falleció de un infarto de miocardio, 22 años después de la cirugía; y el tercer caso fue un paciente que paso de un ganglioglioma grado II a un glioblastoma multiforme, 10 años y 5 meses después de la primera cirugía. De los 27 niños que viven (90%), 25 (83.3%) están libres de crisis, y 2 (6.6%) tienen convulsions esporádicas con un EEG anormal. El rango de sobrevida fue entre 5 meses y 25 años, con una media de 12 años y 7 meses. Conclusión: la extensión de la resección quirúrgica es el factor pronóstico más importante. Se emplea radioterapia y quimioterapia cuando la exéresis fue incompleta, sobretodo cuando hay recidiva y signos de malignización. La braquiterapia es una buena opción terapéutica.


Subject(s)
Astrocytoma , Glioma , Oligodendroglioma
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