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ARTIGO DE REVISÃO

Dysgenesis of the corpus callosum and associated malformations: computed tomography and magnetic resonance imaging findings

Disgenesia do corpo caloso e más-formações associadas: achados de tomografia computadorizada e ressonância magnética

Cristiano Montandon, Flávia Aparecida de Sousa Ribeiro, Leonardo Valadares Barbosa Lobo, Marcelo Eustáquio Montandon Júnior, Kim-Ir-Sen Santos Teixeira



ABSTRACT

Callosal dysgenesis is a malformation of the corpus callosum with origins in the embryogenesis of the telencephalon. We reviewed the computed tomography and magnetic resonance imaging findings of 11 patients with callosal dysgenesis and one patient with normal corpus callosum associated with a lipoma. The patients were divided into three distinct groups: total agenesis (three patients), partial agenesis (six patients) and hypoplasia (two patients). Associated abnormalities were observed in nine patients, including Chiari II malformation (one patient), schizencephaly (one patient), interhemispheric cyst (two patients), Dandy-Walker cyst (one patient), nodular heterotopy (one patient) and lipoma of the corpus callosum (four patients). This paper presents a review that may contribute to the diagnosis of these disorders.

Keywords: Dysgenesis of the corpus callosum, Brain malformation, Developmental anomalies, Lipoma of the corpus callosum

RESUMO

O termo disgenesia do corpo caloso refere-se a uma má-formação deste com origem na embriogênese do telencéfalo. O relato analisa os achados de tomografia computadorizada e ressonância magnética em 11 pacientes com disgenesia calosa e em um caso de corpo caloso normal com lipoma associado. Esta pode ser distinguida em três grupos: agenesia total (três casos), agenesia parcial (seis casos) e hipoplasia (dois casos). Anomalias associadas foram observadas em nove casos, incluindo má-formação de Chiari tipo II (um caso), esquizencefalia (um caso), cisto inter-hemisférico (dois casos), heterotopia nodular (um caso), cisto de Dandy-Walker (um caso) e lipoma do corpo caloso (quatro casos). Este artigo demonstra um espectro destes distúrbios, auxiliando na sua interpretação diagnóstica.

Palavras-chave: Disgenesia do corpo caloso, Má-formação cerebral, Anomalias do desenvolvimento, Lipoma do corpo caloso


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This work is licensed under an Attribution 4.0 International License (CC BY 4.0), effective June 9, 2022. Previously, the journal was licensed under a Creative Commons Attribution - Non-Commercial - Share Alike 4.0 International License.

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