Tourette syndrome associated with unilateral cystic changes in the gyrus rectus

Brain magnetic resonance imaging of an Ii-year-old male with Tourette syndr ome demonstrated multicystic changes predominately in the gyrus rectus of t he left frontal lobe, Other brain regions, including the basal ganglia, wer e normal. He did not have any symptoms of the comorbid conditions associate d with Tourette syndrome, such as attention-deficit disorder or obsessive-c ompulsive disorder. The possible neurobiologic connection between Tourette syndrome and the gyrus rectus and its interconnecting pathways is discussed . (C) 1999 by Elsevier Science Inc. All rights reserved.