In agreement with previous reports (Shimbo et al. 2017), our investigation showed that BCL11A is particularly involved in cortical and cerebellar anomalies, and autistic behavior whereas USP34/XPO1 deletions are more associated with corpus callosum anomalies, microcephaly, IUGR, and hearing loss (Fig. 6). The gene discussed is XPO1; the disease is microcephaly.