Table 1 Brain MRI anomalies in 146 patients with ASD in day-care hospitals of the Greater Paris region

Temporal pole anomalies on T2-weighted images (subcortical hyper-intensity⁵², hypoplasia^{2, 37}, dedifferentiation)

White matter hyper-intensities on T2-weighted images (hemispheres⁶⁰, periventricular, insula, pallidum, cerebellum; focal, punctuate, heterotopia)

Cerebellar anomalies (vermian or hemispheric atrophy^{37, 54, 67}, hypoplasia²⁰, signal anomalies)

Abnormal ventricles (dysmorphism⁴⁵, dilatation¹⁸, asymmetry)

Corpus callosum anomalies (short, thin¹⁸, thick^{26, 37}, dysmorphic)

Cysts⁴⁷, tumors (teratoms, gangliomas, germinomas)

Dilation of Virchow-Robin spaces⁴⁷

Abnormal pituitary gland^{14, 52}

Abnormal gyration (heterotopia, polymicrogyria, pachygyria)