Please use this identifier to cite or link to this item: http://repositorio.unicamp.br/jspui/handle/REPOSIP/78882
Type: Artigo de periódico
Title: Temporal lobe hypogenesis associated with arachnoid cyst in patients with epilepsy
Author: Kobayashi, E
Bonilha, L
Li, LM
Cendes, F
Abstract: Objective: To determine the frequency of temporal lobe hypogenesis (TLH) associated with a rachnoid cysts (AC) in patients with epilepsy. Method: We retrospectively revised 655 consecutive MRI scans from patients followed in our epilepsy clinic. We identified patients with temporal AC and then performed careful visual analysis in a workstation. Patients with evident expansive or destructive lesions were excluded. Results: Only 4 (0.6%) patients had AC in the left temporal lobe, all associated with TLH. In addition, there were also ipsilateral dysgenetic characteristics in the ipsilateral hippocampus including abnormal shape and axis, and hyperintense T2 signal. In one patient this hippocampal abnormality was bilateral. Conclusion: AC with TLH was rarely found in our patients with epilepsy and it was always associated with hippocampal dysgenesis. Although volumetric reduction of the temporal lobe can be observed in patients with epilepsy and hippocampal abnormalities, the presence of adjacent AC points to a malformative etiology.
Subject: hippocampal dysgenesis
cortical development malformation
partial epilepsy
seizures
magnetic resonance imaging
Country: Brasil
Editor: Assoc Arquivos De Neuro- Psiquiatria
Rights: aberto
Identifier DOI: 10.1590/S0004-282X2003000300001
Date Issue: 2003
Appears in Collections:Artigos e Materiais de Revistas Científicas - Unicamp

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