Marginal means (after correcting for age and gender) for right amygdala volume (A) and bilateral parahippocampal thickness (B,C) in those with 22q11DS and autism spectrum disorder diagnosis (22q11DS-ASD+, red), 22q11DS without an autism spectrum disorder diagnosis (22q11DS-ASD−, pink), and typically developing controls (blue).Those with 22q11DS and autism spectrum disorder diagnosis (22q11DS-ASD+) exhibited reduced amygdala volumes (A), and reduced right (B) and left (C) cortical thickness in the parahippocampal regions in comparison in 22q11DS-ASD− and typically developing controls.