Creutzfeldt-Jakob disease differential diagnosis

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Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1] Associate Editor(s)-in-Chief: Twinkle Singh, M.B.B.S. [2]

Overview

Creutzfeldt-Jakob disease must be differentiated from other causes of rapidly progressive dementia, such as other neurodegenerative diseases, infections, Alzheimer's disease, vascular dementia, and dementia due to metabolic or toxic etiology.^[1]

Differential Diagnosis of Creutzfeldt-Jakob Disease

CJD should be differentiated from variant Creutzfeldt-Jakob disease and Mad Cow disease.
Differential diagnosis of Creutzfeldt-Jakob disease includes the following:

Neurodegenerative Diseases

Autoimmune diseases

Infections

Toxic or metabolic causes

Clinical and pathologic characteristics of classic CJD and variant CJD:^[2]

Characteristic	Classic CJD	Variant CJD
Median age at death	68 years	28 years
Median duration of illness	4-5 months	13-14 months
Clinical signs and symptoms	Dementia; early neurologic signs	Prominent psychiatric/behavioral symptoms; painful dysesthesias; delayed neurologic signs
Periodic sharp waves on electroencephalogram	Often present	Often absent
Signal hyperintensity in the caudate nucleus and putamen on diffusion-weighted and FLAIR MRI	Often present	Often absent
Pulvinar sign on MRI	Not reported	Present in >75% of cases
Immunohistochemical analysis of brain tissue	Variable accumulation.	Marked accumulation of protease-resistant prion protein
Presence of agent in lymphoid tissue	Not readily detected	Readily detected
Increased glycoform ratio on immunoblot analysis of protease-resistant prion protein	Not reported	Marked accumulation of protease-resistant prion protein
Presence of amyloid plaques in brain tissue	May be present	May be present

References

↑ ^1.0 ^1.1 Paterson RW, Torres-Chae CC, Kuo AL, Ando T, Nguyen EA, Wong K; et al. (2012). "Differential diagnosis of jakob-creutzfeldt disease". Arch Neurol. 69 (12): 1578–82. doi:10.1001/2013.jamaneurol.79. PMID 23229042.
↑ Belay ED, Schonberger LB (2002). "Variant Creutzfeldt-Jakob disease and bovine spongiform encephalopathy". Clin. Lab. Med. 22 (4): 849–62, v–vi. PMID 12489284.

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[pmid23229042-1] 1.0 ^1.1 Paterson RW, Torres-Chae CC, Kuo AL, Ando T, Nguyen EA, Wong K; et al. (2012). "Differential diagnosis of jakob-creutzfeldt disease". Arch Neurol. 69 (12): 1578–82. doi:10.1001/2013.jamaneurol.79. PMID 23229042.

[2] Belay ED, Schonberger LB (2002). "Variant Creutzfeldt-Jakob disease and bovine spongiform encephalopathy". Clin. Lab. Med. 22 (4): 849–62, v–vi. PMID 12489284.

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