期刊
CURRENT OPINION IN NEUROLOGY
卷 19, 期 6, 页码 565-571出版社
LIPPINCOTT WILLIAMS & WILKINS
DOI: 10.1097/01.wco.0000247606.57567.41
关键词
aphasia; behaviour; clinical diagnosis; imaging; pathology
资金
- Medical Research Council [MC_U105559861] Funding Source: researchfish
- MRC [MC_U105559861] Funding Source: UKRI
Purpose of review The syndromes of frontotemporal lobar degeneration are increasingly recognized as an important cause of early-onset dementia. Diagnostic consensus criteria have now been established for almost a decade, and form the framework for its clinical classification. While these criteria remain useful, a growing body of evidence suggests that revisions may be necessary to improve their validity and applicability. Recent findings In each individual syndrome, the core features are not uniformly present, and criteria that are currently used to exclude a condition, such as impaired episodic memory, are often present. Imaging, however, may warrant increased diagnostic prominence, particularly for diagnosis in semantic dementia and prognosis in behavioural syndromes. There is clinical and pathological overlap between the syndromes, but the clinical distinction between progressive nonfluent aphasia and semantic dementia is strengthening. Several series have refined our understanding of the correspondence between clinical syndromes and histopathological subtype: strong for taunegative, ubiquitin-positive forms and more variable for taupositive forms, yet prospective studies are still rare. The influence of genetic factors varies substantially across the syndromes. Summary Further research should aim to integrate detailed clinical, radiological, pathological and genetic information.
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