ABSTRACT
This chapter examines neuroanatomical models which are mainly based on results obtained using structural neuroimaging. It presents a brief summary of some of the recent advances in the understanding of repetition abilities in both normal subjects and brain-damaged patients which have been performed using positron emission tomography and functional MRI during cognitive activation. The chapter then describes recent single photon emission computed tomography findings in a series of patients with Transcortical Aphasias (TA) and focuses on the functional status of the left perisylvian language cortex. Analysis of the subpopulation of right-handed patients with TA and lesions involving large portions of the left perisylvian language area disclosed that they had spontaneous speech, naming, and auditory comprehension mediated by the left hemisphere. The Klipper-Trenaunay syndrome is a rare congenital anomaly characterised by cutaneous port-wine hemangiomata, venous varicosities, and osseous and soft-tissue hypertrophy usually unilateral and involving a limb.
