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1.
Neurocirugía (Soc. Luso-Esp. Neurocir.) ; 29(5): 255-259, sept.-oct. 2018. ilus
Article in Spanish | IBECS | ID: ibc-180319

ABSTRACT

El tumor glioneuronal formador de rosetas del IV ventrículo es un tumor primario del sistema nervioso central introducido en el grupo de tumores glioneuronales en la clasificación de la OMS de 2007. Inicialmente se describió alrededor del IV ventrículo, pero recientemente se han publicados casos en distintas localizaciones. Presentamos 2casos de este raro tumor, ambos tratados quirúrgicamente. El primero en un varón de 41 años de edad, con síntomas típicos de lesión de fosa posterior; el segundo, en una mujer de 18 años de edad, con hallazgo incidental de lesión en fosa posterior que también fue tratada quirúrgicamente. Presentamos imágenes de resonancia magnética pre- y posquirúrgicas, aportamos imágenes histológicas de este tumor y realizamos una revisión de la literatura


Rosette-forming glioneuronal tumor of the fourth ventricle is a primary central nervous system tumor introduced in the group of glioneuronal tumors in the WHO classification of 2007. Initially it was described around the fourth ventricle, but recently have been published cases in different locations. We present 2cases of this rare tumor, both surgically treated. The first in a 41 year old man with typical symptoms of posterior fossa injury. The second in an 18 year old woman, with incidental finding of posterior fossa injury that was also surgically treated. We present pre- and post-surgical magnetic resonance images, histological pictures of this tumor and we make a review of the literature


Subject(s)
Humans , Male , Female , Adolescent , Adult , Cerebral Ventricle Neoplasms/diagnostic imaging , Cerebral Ventricle Neoplasms/surgery , Rosette Formation , Central Nervous System/diagnostic imaging , Central Nervous System/pathology , Neuroimaging/methods
2.
Neurocirugia (Astur : Engl Ed) ; 29(5): 255-259, 2018.
Article in English, Spanish | MEDLINE | ID: mdl-29338911

ABSTRACT

Rosette-forming glioneuronal tumor of the fourth ventricle is a primary central nervous system tumor introduced in the group of glioneuronal tumors in the WHO classification of 2007. Initially it was described around the fourth ventricle, but recently have been published cases in different locations. We present 2cases of this rare tumor, both surgically treated. The first in a 41 year old man with typical symptoms of posterior fossa injury. The second in an 18 year old woman, with incidental finding of posterior fossa injury that was also surgically treated. We present pre- and post-surgical magnetic resonance images, histological pictures of this tumor and we make a review of the literature.


Subject(s)
Cerebral Ventricle Neoplasms/surgery , Fourth Ventricle/surgery , Glioma/surgery , Infratentorial Neoplasms/surgery , Adolescent , Adult , Cerebral Ventricle Neoplasms/complications , Cerebral Ventricle Neoplasms/diagnostic imaging , Cerebral Ventricle Neoplasms/ultrastructure , Craniotomy , Diagnosis, Differential , Ependymoma/diagnosis , Female , Fourth Ventricle/diagnostic imaging , Fourth Ventricle/ultrastructure , Glioma/complications , Glioma/diagnostic imaging , Humans , Hydrocephalus/etiology , Incidental Findings , Infratentorial Neoplasms/complications , Infratentorial Neoplasms/diagnostic imaging , Infratentorial Neoplasms/ultrastructure , Magnetic Resonance Imaging , Male , Remission Induction
3.
Neurocirugia (Astur) ; 23(3): 116-21, 2012 May.
Article in Spanish | MEDLINE | ID: mdl-22575760

ABSTRACT

INTRODUCTION: Atypical choroid plexus papilloma is a rare tumour, recently defined by the World Health Organisation and with very few cases reported to date. Choroid plexus tumours are rare intraventricular neoplasms originating from choroid plexus epithelium, with benign papillomas being more frequent than carcinomas. Most of these lesions appear in children, mainly located in the lateral ventricles. Those arising from the fourth ventricle are more frequent in adulthood. Surgery with complete resection can be curative in papillomas, with 5-year survival rates close to 100% and occasional recurrences. Radical surgery in carcinomas is difficult and usually requires adjuvant therapy, prognosis is worse and survival rates are lower. We report a case of atypical choroid plexus papilloma in adulthood located in the fourth ventricle, describing the different therapeutic options and reviewing the existing literature. CASE REPORT: 38-year old male with an atypical choroid plexus papilloma located in the fourth ventricle, totally resected by posterior fossa craniectomy and telovellar approach. CONCLUSION: Atypical choroid plexus papillomas are associated with an increased risk of recurrence or malignant transformation when compared to "typical" papillomas. At present, complete surgical excision and close follow-up seems to be the most reliable treatment. Adjuvant chemotherapy or radiotherapy should be considered in cases of partial resection, recurrence or dissemination.


Subject(s)
Neoplasm Recurrence, Local , Papilloma, Choroid Plexus , Adult , Carcinoma , Cerebral Ventricle Neoplasms , Choroid Plexus Neoplasms , Glioma , Humans , Neoplasm Recurrence, Local/surgery
4.
Neurocir. - Soc. Luso-Esp. Neurocir ; 23(3): 116-121, mayo-jun. 2012.
Article in Spanish | IBECS | ID: ibc-110972

ABSTRACT

Introducción El papiloma atípico de plexos coroideos es un tumor infrecuente, recientemente reconocido por la Organización Mundial de la Salud, con muy pocos casos publicados hasta la fecha. Los tumores de plexos coroideos son neoplasias intraventriculares raras que derivan del epitelio de los plexos coroideos, siendo los papilomas mucho más frecuentes que los carcinomas. La gran mayoría se localiza, en la edad pediátrica, a nivel de los ventrículos laterales; los del IV ventrículo son más frecuentes en adultos. La cirugía es curativa en los papilomas, con un porcentaje de supervivencia de casi el 100% a los 5 años y recurrencias ocasionales. En los carcinomas la cirugía radical es difícil, es necesario un tratamiento adyuvante y el pronóstico es peor, con baja supervivencia a los 5 años. Presentamos un caso de papiloma atípico de plexos coroideos en el adulto, localizado en el IV ventrículo, sobre el que se discuten las opciones terapéuticas, a la vez que se realiza una revisión de la bibliografía publicada. Caso clínico Paciente varón de 38 años con papiloma atípico de plexos coroideos en el adulto localizado en el IV ventrículo, extirpado en su totalidad mediante craniectomía de fosa posterior y tratamiento telovelar. Conclusión El papiloma atípico de plexos coroideos por definición tiene un riesgo mayor de recidiva o transformación maligna respecto al papiloma "típico". Por ello, la resección quirúrgica completa y el estrecho seguimiento son actualmente el tratamiento más fiable. Sin embargo, la quimioterapia y la radioterapia postoperatorias deberían considerarse en casos de extirpación parcial, recidiva o diseminación (AU)


Subject(s)
Humans , Male , Adult , Papilloma/surgery , Choroid Plexus Neoplasms/surgery , Cerebral Ventricle Neoplasms/surgery , Neoplasms, Neuroepithelial/surgery
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