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Medical condition Dementia with Lewy bodies Other names Diffuse Lewy body disease, dementia due to Lewy body disease Microscopic image of a Lewy body (arrowhead) in a neuron of the substantia nigra ; scale bar=20 microns (0.02 mm) Specialty Neurology, psychiatry Symptoms Dementia, abnormal behavior during REM sleep, fluctuations in alertness, visual hallucinations, parkinsonism Usual onset ...
Lewy body dementia(LBD) is an umbrella term for two similar and common subtypes of dementia:[1]dementia with Lewy bodies(DLB) andParkinson's disease dementia(PDD). [2][3][4][5]Both are characterized by changes in thinking, movement, behavior, and mood.[1] The two conditions have similar features and may have similar causes, and are believed to ...
Signs and symptoms. Frontotemporal dementia is an early onset disorder that mostly occurs between the ages of 45 and 65, [13] but can begin earlier, and in 20–25% of cases onset is later. [11][14] Men and women appear to be equally affected. [15] It is the most common early presenting dementia. [16]
Vascular dementia. Vascular dementia is dementia caused by a series of strokes. [ 2 ][ 4 ] Restricted blood flow due to strokes reduces oxygen and glucose delivery to the brain, causing cell injury and neurological deficits in the affected region. [ 6 ] Subtypes of vascular dementia include subcortical vascular dementia, multi-infarct dementia ...
Binswanger's disease, also known as subcortical leukoencephalopathy and subcortical arteriosclerotic encephalopathy, [1] is a form of small-vessel vascular dementia caused by damage to the white brain matter. [2] White matter atrophy can be caused by many circumstances including chronic hypertension as well as old age. [3]
Mild cognitive impairment (MCI) is a neurocognitive disorder which involves cognitive impairments beyond those expected based on an individual's age and education but which are not significant enough to interfere with instrumental activities of daily living. [ 1 ] MCI may occur as a transitional stage between normal aging and dementia ...
2.4 million (2016) [ 9 ] Dementia is a syndrome associated with many neurodegenerative diseases, characterized by a general decline in cognitive abilities that affects a person's ability to perform everyday activities. This typically involves problems with memory, thinking, behavior, and motor control. [ 10 ]
c. 1 per 1,000 (US) [ 3 ] Meningioma, also known as meningeal tumor, is typically a slow-growing tumor that forms from the meninges, the membranous layers surrounding the brain and spinal cord. [ 1 ] Symptoms depend on the location and occur as a result of the tumor pressing on nearby tissue. [ 3 ][ 6 ] Many cases never produce symptoms. [ 2 ]