Temporal lobe hypogenesis associated with arachnoid cyst in patients with epilepsy
Arq. neuropsiquiatr
;
61(2B): 327-329, Jun. 2003. ilus, tab
Article
Dans Anglais
| LILACS
| ID: lil-342771
RESUMO
OBJECTIVE:
To determine the frequency of temporal lobe hypogenesis (TLH) associated with arachnoid 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 percent) 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
Texte intégral:
Disponible
Indice:
LILAS (Amériques)
Sujet Principal:
Lobe temporal
/
Kystes arachnoïdiens
/
Épilepsie temporale
Type d'étude:
Étude observationnelle
/
Étude pronostique
/
Facteurs de risque
Limites du sujet:
Adolescent
/
Adulte
/
Humains
/
Mâle
langue:
Anglais
Texte intégral:
Arq. neuropsiquiatr
Thème du journal:
Neurologie
/
Psychiatrie
Année:
2003
Type:
Article
Pays d'affiliation:
Brésil
Institution/Pays d'affiliation:
Campinas State University/BR
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