Fig. 2From: Cortical and subcortical changes following sphenopalatine ganglion blocks in chronic migraine with medication overuse headache: a preliminary longitudinal studyCortical structures exhibiting morphometric changes after SPG treatment. Over the course of the SPG treatment, cortical thickness decreased in the left temporal pole and the left lateral occipitotemporal sulcus. Ant = anterior, Post = posterior, L = left hemisphereBack to article page