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Dementia 02

Topic: Imaging

Created on Thursday, February 22 2007 by jdmiles

Last modified on Thursday, February 22 2007.

A 71 year-old female presents to your office accompanied by her nephew, who provides most of the history.
The nephew states that for the past 10 months, the patient has been forgetting things more frequently, has had increasing difficulty inititiating movement, has fallen several times, has complained of rigidity, occasionally will stare off into space for long periods of time, and has been seeing people in the room that nobody else sees.
Which of the following pathology findings is MOST characteristic of this patient's disease?

A) Lewy bodies

B) Bunina bodies

C) Lesions in the mammillary bodies

D) Neurofibrillary tangles,

E) Eosinophilic nuclear inclusions

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This question was created on February 22, 2007 by jdmiles.
This question was last modified on February 22, 2007.

ANSWERS AND EXPLANATIONS

A) Lewy bodies

This answer is correct.

This patient's history is consistent with dementia with Lewy bodies (DLB). Patients with DLB develop Parkinsonian symptoms and dementia symptoms at approximately the same time. Other key clinical features include recurrent visual hallucinations and fluctuations in mental status. Lewy bodies are eosinophilic cytoplasmic inclusions which contain alpha-synuclein. (See References)

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B) Bunina bodies

This answer is incorrect.

This patient's history is consistent with dementia with Lewy bodies (DLB). Patients with DLB develop Parkinsonian symptoms and dementia symptoms at approximately the same time. Other key clinical features include recurrent visual hallucinations and fluctuations in mental status. Neuronal aggregates and Bunina bodies are seen in amyotrophic lateral sclerosis. (See References)

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C) lesions in the mammillary bodies

This answer is incorrect.

This patient's history is consistent with dementia with Lewy bodies (DLB). Patients with DLB develop Parkinsonian symptoms and dementia symptoms at approximately the same time. Other key clinical features include recurrent visual hallucinations and fluctuations in mental status. Lesions in the mammillary bodies are seen in Korsakoff amnestic state. (See References)

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D) neurofibrillary tangles,

This answer is incorrect.

This patient's history is consistent with dementia with Lewy bodies (DLB). Patients with DLB develop Parkinsonian symptoms and dementia symptoms at approximately the same time. Other key clinical features include recurrent visual hallucinations and fluctuations in mental status. Neurofibrillary tangles tend to be sparse in DLB. Neurofibrillary are more commonly associated with Alzheimer disease. (See References)

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E) eosinophilic nuclear inclusions

This answer is incorrect.

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References:

1. Victor, M., and Ropper, A.H. (2001). Adams and Victor's Principles of Neurology, 7th Edition. McGraw-Hill, New York.
2. DeKosky, S.T., Kaufer, D.I., and Lopez, O.L. (2004). The Dementias. In Bradley, W.G., Daroff, R.B., Fenichel, G.M., and Jankovic, J. (Eds.). Neurology in Clinical Practice, 4th Edition. Butterworth Heinemann, Philadelphia. Pp. 1901-1951
3. Prayson, R.A., and Goldblum, J.R. (Eds.) (2005). Neuropathology. Elsevier, Philadelphia.

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imaging
Dementia 02
Question ID: 02220701
Question written by J. Douglas Miles, (C) 2006-2009, all rights reserved.
Created: 02/22/2007
Modified: 02/22/2007
Estimated Permutations: 0