Neuroradiologic patterns and novel imaging findings in Aicardi-Goutières syndrome

Roberta La Piana, Carla Uggetti, Federico Roncarolo, Adeline Vanderver, Ivana Olivieri, Davide Tonduti, Guy Helman, Umberto Balottin, E. Fazzi, Yanick J. Crow, John Livingston, Simona Orcesi

Research output: Contribution to journalArticle

Abstract

Objective: To perform an updated characterization of the neuroradiologic features of Aicardi-Goutières syndrome (AGS). Methods: The neuroradiologic data of 121 subjects with AGS were collected. The CT and MRI data were analyzed with a systematic approach. Moreover, we evaluated if an association exists between the neuroradiologic findings, clinical features, and genotype. Results: Brain calcifications were present in 110 subjects (90.9%). Severe calcification was associated with TREX1 mutations and early age at onset. Cerebral atrophy was documented in 111 subjects (91.8%). Leukoencephalopathy was present in 120 children (99.2%), with 3 main patterns: frontotemporal, diffuse, and periventricular. White matter rarefaction was found in 54 subjects (50.0%), strongly associated with mutations in TREX1 and an early age at onset. Other novel radiologic features were identified: deep white matter cysts, associated with TREX1 mutations, and delayed myelination, associated with RNASEH2B mutations and early age at onset. Conclusions: We demonstrate that the AGS neuroradiologic phenotype is expanding by adding new patterns and findings to the classic criteria. The heterogeneity of neuroradiologic patterns is partly explained by the timing of the disease onset and reflects the complexity of the pathogenic mechanisms.

Original languageEnglish
Pages (from-to)28-35
Number of pages8
JournalNeurology
Volume86
Issue number1
DOIs
Publication statusPublished - Jan 5 2016

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ASJC Scopus subject areas

  • Clinical Neurology

Cite this

La Piana, R., Uggetti, C., Roncarolo, F., Vanderver, A., Olivieri, I., Tonduti, D., Helman, G., Balottin, U., Fazzi, E., Crow, Y. J., Livingston, J., & Orcesi, S. (2016). Neuroradiologic patterns and novel imaging findings in Aicardi-Goutières syndrome. Neurology, 86(1), 28-35. https://doi.org/10.1212/WNL.0000000000002228