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Symptoms and Signs – Differential Diagnosis of Dementia
Alzheimer's disease
Degenerative: Parkinson's and other akinetic-rigid syndromes, Pick's disease, prion disease, Lewy body dementia
Dementia continued
Infection: HIV, syphilis, Whipple's disease
Inflammation: vasculitis, SLE, sarcoid, multiple sclerosis
Inherited: Wilson's disease, Huntington's chorea, some cerebellar ataxias
Metabolic: myxoedema, vitamin B12 deficiency, hypoglycaemia (repeated)
Toxic: alcohol, lead, barbiturates
Trauma: head injury, subdural haemarrohage
Tumour: frontal tumours, posterior fossa (causing hydrocephalus), brain metastases, paraneoplastic
Vascular: multiple infarctions
Alzheimer's disease
Degenerative: Parkinson's and other akinetic-rigid syndromes, Pick's disease, prion disease, Lewy body dementia
Dementia continued
Infection: HIV, syphilis, Whipple's disease
Inflammation: vasculitis, SLE, sarcoid, multiple sclerosis
Inherited: Wilson's disease, Huntington's chorea, some cerebellar ataxias
Metabolic: myxoedema, vitamin B12 deficiency, hypoglycaemia (repeated)
Toxic: alcohol, lead, barbiturates
Trauma: head injury, subdural haemarrohage
Tumour: frontal tumours, posterior fossa (causing hydrocephalus), brain metastases, paraneoplastic
Vascular: multiple infarctions
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