RT Journal A1 Womack KB, Diaz-Arrastia R, Aizenstein HJ, et al T1 TEmporoparietal hypometabolism in frontotemporal lobar degeneration and associated imaging diagnostic errors JF Archives of Neurology JO Archives of Neurology YR 2011 FD March 1 VO 68 IS 3 SP 329 OP 337 DO 10.1001/archneurol.2010.295 UL http://dx.doi.org/10.1001/archneurol.2010.295 AB Frontotemporal lobar degeneration (FTLD) is the third most common degenerative dementia, behind Alzheimer disease (AD) and dementia with Lewy bodies.1 It is a heterogeneous disorder with at least 3 recognized clinical presentations,2 multiple histopathologic subtypes,3- 4 and familial cases associated with mutations in 4 different genes5- 9 with an additional genetic linkage on chromosome 9p.10- 12