Fig. 12From: Paediatric brainstem: A comprehensive review of pathologies on MR imagingA 9-month-old child with delayed milestones and seizures: a–c Axial T2-weighted images show hyperintense signal involving the putamina (dotted arrow) and medial thalamic nucleus. Caudally there is involvement of the mid brain (short arrow) with characteristic involvement of the periaqueductal region in this patient with Leigh syndromeBack to article page