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This is an accepted version of this page This is the latest accepted revision, reviewed on 1 February 2025. Long-term brain disorders causing impaired memory, thinking and behavior This article is about the cognitive disorder. For other uses, see Dementia (disambiguation). "Senile" and "Demented" redirect here. For other uses, see Senile (disambiguation) and Demented (disambiguation). Medical ...
The diagnosis may initially be suspected in a person with rapidly progressing dementia, particularly when they are also found with the characteristic medical signs and symptoms such as involuntary muscle jerking, [35] difficulty with coordination/balance and walking, and visual disturbances. [4] Further testing can support the diagnosis and may ...
Dementia with Lewy bodies (DLB) is a type of dementia, a group of diseases involving progressive neurodegeneration of the central nervous system. [11] It is one of the two Lewy body dementias, along with Parkinson's disease dementia. [12] Dementia with Lewy bodies can be classified in other ways.
Alzheimer's disease (AD) is a neurodegenerative disease that usually starts slowly and progressively worsens. [2] It is the cause of 60–70% of cases of dementia. [2] [15] The most common early symptom is difficulty in remembering recent events. [1]
Proper diagnosis of these neurodegenerative disorders is important as individual treatments vary depending on the condition. The nuclear medicine SPECT procedure using 123 I ‑ iodobenzamide (IBZM), is an effective tool in the establishment of the differential diagnosis between patients with PD and Parkinson-plus syndromes.
Differential diagnosis of Parkinson's is among the most difficult in neurology. [149] Differentiating early PD from atypical parkinsonian disorders is a major difficulty. In their initial stages, PD can be difficult to distinguish from the atypical neurodegenerative parkinsonisms, including MSA, dementia with Lewy bodies, and the tauopathies ...