Aphasia -- having difficulty with speech -- is a symptom that many dementia syndromes have in common.

Assessment of Language Function in Dementia
Impairment in language is a common finding among individuals with dementia and can be a presenting symptom, particularly in Alzheimer's dementia and primary progressive aphasia. Early recognition of l
http://www.medscape.com/viewarticle/573859
Word-finding difficulty: a clinical analysis of the progressive aphasias
The patient with word-finding difficulty presents a common and challenging clinical problem. The complaint of 'word-finding difficulty' covers a wide range of clinical phenomena and may signify an
http://brain.oxfordjournals.org/cgi/content/full/1...