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. Author manuscript; available in PMC: 2010 Aug 5.
Published in final edited form as: CNS Drugs. 2010 May 1;24(5):375–398. doi: 10.2165/11533100-000000000-00000

Fig. 2.

Fig. 2

MRI findings in frontotemporal lobar degeneration (FTLD). T1-weighted images from representative patients with behavioural-variant frontotemporal dementia (bvFTD) [a and b], semantic dementia (SD) [c] and progressive nonfluent aphasia (PNFA) [d] are displayed in neurologic orientation. (a and b) bvFTD patient shows marked atrophy throughout the medial and lateral frontal cortex and the temporal poles, with striking relative preservation of the posterior brain regions on a sagittal view. (c) Patient with SD shows asymmetric degeneration of the temporal poles (left greater than right). (d) PNFA patient shows atrophy in the left inferolateral and dorsomedial frontal cortex and anterior insula.