Aicardi Syndrome: Key Fetal MRI Features and Prenatal Differential Diagnosis

Silvia Masnada, Doneda Chiara, Izzo Giana, Formica Manuela, Scarabello Marco, Accogli Andrea, Accorsi Patrizia, Bahi-Buisson Nadia, Capra Valeria, Cavallin Mara, Dalla Bernardina Bernardo, Darra Francesca, De Giorgis Valentina, Fazzi Elisa, Fontanillas R L Miguel, Fusco Carlo, Giordano Lucio, Orcesi Simona, Pinelli Lorenzo, Rebessi ErikaRomeo Antonino, Severino Mariasavina, Spagnoli Carlotta, Veggiotti Pierangelo, Pichiecchio Anna, Righini Andrea, Parazzini Cecilia

Research output: Contribution to journalArticle

Abstract

OBJECTIVE:  This study was aimed to investigate the prenatal findings in Aicardi syndrome (AIC) by intrauterine magnetic resonance imaging (iuMRI) suggesting possible diagnostic criteria and differential diagnosis.

METHODS:  The iuMRI features of nine AIC confirmed cases were described and then compared with those of postnatal MRI. Furthermore, all iuMRI cases with both corpus callosum (CC) agenesis-dysgenesis and cortical malformation (AIC mimickers) were retrospectively reviewed and compared with iuMRI AIC cases, in order to identify possible neuroradiological predictors of AIC syndrome. For this purpose, Chi-square statistic and binary logistic regression analysis were performed.

RESULTS:  In all AIC cases, iuMRI was able to detect CC agenesis-dysgenesis and cortical development anomalies. Postnatal MRI revealed some additional findings mainly including further cystic lesions and in two cases small coloboma. A statistically significant difference between AIC and AIC mimicker were found regarding sex, nodular heterotopias, posterior fossa abnormalities, coloboma, and cortical gyration abnormalities. The most predictive variables in the logistic regression model were cortical gyration abnormalities, coloboma, and sex.

CONCLUSION:  The iuMRI findings may suggest prenatal diagnosis of AIC syndrome with significant impact on parental counseling. Among possible differential diagnoses, tubulinopathies emerged.

Original languageEnglish
Pages (from-to)276-285
Number of pages10
JournalNeuropediatrics
Volume51
Issue number4
DOIs
Publication statusPublished - Aug 2020

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    Masnada, S., Chiara, D., Giana, I., Manuela, F., Marco, S., Andrea, A., Patrizia, A., Nadia, B-B., Valeria, C., Mara, C., Bernardo, D. B., Francesca, D., Valentina, D. G., Elisa, F., Miguel, F. R. L., Carlo, F., Lucio, G., Simona, O., Lorenzo, P., ... Cecilia, P. (2020). Aicardi Syndrome: Key Fetal MRI Features and Prenatal Differential Diagnosis. Neuropediatrics, 51(4), 276-285. https://doi.org/10.1055/s-0040-1710528