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PLoS One ; 13(5): e0196696, 2018.
Artigo em Inglês | MEDLINE | ID: mdl-29723241

RESUMO

INTRODUCTION: Leptomeningeal disease is a feared sequelae of malignant paediatric brain tumours. Current methods for its detection is the combined use of cranio-spinal MRI, and CSF cytology from a post-operative lumbar puncture. In this study, the authors hypothesize that CSF taken at the start of surgery, either from an external ventricular drain or neuroendoscope will have equal sensitivity for positive tumour cells, in comparison to lumbar puncture. Secondary hypotheses include positive correlation between CSF cytology and MRI findings of LMD. From a clinical perspective, the key aim of the study was for affected paediatric patients to avoid an additional procedure of a lumbar puncture, often performed under anaesthesia after neurosurgical intervention. METHODS: This is single-institution, retrospective study of paediatric patients diagnosed with malignant brain tumours. Its main aim was to compare cytological data from CSF collected at the time of surgery versus data from an interval lumbar puncture. In addition, MRI imaging of the same cohort of patients was examined for leptomeningeal disease and corroborated against CSF tumour cytology findings. RESULTS: Thirty patients are recruited for this study. Data analysis demonstrates a statistically significant association between our intra-operative CSF and LP sampling. Furthermore, our results also show for significant correlation between evidence of leptomeningeal disease on MRI findings versus intra-operative CSF positivity for tumour cells. CONCLUSION: Although this is a retrospective study with a limited population, our data concurs with potential to avoid an additional procedure for the paediatric patient diagnosed with a malignant brain tumour.


Assuntos
Aracnoide-Máter/patologia , Neoplasias Encefálicas/líquido cefalorraquidiano , Período Intraoperatório , Pia-Máter/patologia , Manejo de Espécimes/métodos , Punção Espinal , Adolescente , Neoplasias Encefálicas/diagnóstico por imagem , Neoplasias Encefálicas/patologia , Neoplasias Encefálicas/cirurgia , Contagem de Células , Líquido Cefalorraquidiano/citologia , Criança , Pré-Escolar , Reações Falso-Negativas , Feminino , Humanos , Lactente , Imageamento por Ressonância Magnética , Masculino , Invasividade Neoplásica/diagnóstico , Invasividade Neoplásica/patologia , Neuroimagem , Estudos Retrospectivos , Sensibilidade e Especificidade , Coluna Vertebral/diagnóstico por imagem , Coluna Vertebral/patologia
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