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  #1  
Old 06-07-2011
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Question Spinal cord cross section - lesion sites

Spinal cord cross section - lesion sites-spinesection.jpg
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Lesion(s) sites for:

A) Amyotrophic Lateral Sclerosis
B) Syringomyelia
C) Poliomyelitis
D) Tertiary syphilis
E) Pernicious anemia

Last edited by bebix; 06-07-2011 at 09:59 AM. Reason: spelling
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:d

Last edited by add1; 06-07-2011 at 12:27 PM.
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A) b & c
b) a
c) b
d) d
e) e?
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  #4  
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Bebix please post the answers and next time please specify if more than one answer is allowed :Plol
thanks

Last edited by add1; 06-07-2011 at 09:50 AM.
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Old 06-07-2011
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A)..C
B)..A
c)..B
d)..?
E)..D+E...........
...lets see whats are the answers...
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A) c
B) a
c) b
D) f
E) d
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A) B/C the primary lesion sites would actually be the LMN and UMN cell bodies, the degeneration of the pyramidal tract is a consequence, so I'm not sure if C is right
B) A
C) B
D) D/E/F
E) C/D/E/F
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Cool Lesions of sc

a: C & B
b: A & B
c: B
d: D & E
e: C, D & E

Last edited by vikash; 06-07-2011 at 12:20 PM.
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Quote:
Originally Posted by bebix View Post
Attachment 1455
click image to enlarge

Lesion(s) sites for:

A) Amyotrophic Lateral Sclerosis
B) Syringomyelia
C) Poliomyelitis
D) Tertiary syphilis
E) Pernicious anemia
B. syringomyelia
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Old 06-07-2011
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Quote:
Originally Posted by giuliane View Post
A) B/C the primary lesion sites would actually be the LMN and UMN cell bodies, the degeneration of the pyramidal tract is a consequence, so I'm not sure if C is right
B) A
C) B
D) D/E/F
E) C/D/E/F
Hey dear F is logical. lets see the answers
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Quote:
Originally Posted by bebix View Post
Attachment 1455
click image to enlarge

Lesion(s) sites for:

A) Amyotrophic Lateral Sclerosis
B) Syringomyelia
C) Poliomyelitis
D) Tertiary syphilis
E) Pernicious anemia
oops..i didnt understand the question before ..
here are my answers..
ALS...B and C
Syringomyelia...A
poliomyelitis...B
Tertiary syphilis..D and E
pernicious anemia..D and E
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  #12  
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Correct Answer correct answer

A) Amyotrophic Lateral Sclerosis = B and C
B) Syringomyelia = A
C) Poliomyelitis = B
D) Tertiary syphilis = Tabes dorsalis D and E
E) Pernicious anemia = C, D & E


From Kaplan book:

Spinal cord cross section - lesion sites-spine1.png
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Spinal cord cross section - lesion sites-spine2.png
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Spinal cord cross section - lesion sites-spinal_cord.jpg
click image to enlarge
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Old 06-07-2011
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btw, from kaplan notes...in ALS: I think the arrows are wrong...
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Quote:
Originally Posted by add1 View Post
Bebix please post the answers and next time please specify if more than one answer is allowed :Plol
thanks
"Lesion(s) sites for"
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I have a question: but if in both tabes dorsalis and pernicious anemia there are hyporeflexia and hypotonicity (together with the other classic signs of posterior cordonal injury)... then shouldn't there be involvement of the posterior roots as well? otherwise where would Ia afferent fibers from neuromuscluar spindles be interrupted?
(don't know if I expressed myself clearly)
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Old 06-08-2011
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Quote:
Originally Posted by giuliane View Post
I have a question: but if in both tabes dorsalis and pernicious anemia there are hyporeflexia and hypotonicity (together with the other classic signs of posterior cordonal injury)... then shouldn't there be involvement of the posterior roots as well? otherwise where would Ia afferent fibers from neuromuscluar spindles be interrupted?
(don't know if I expressed myself clearly)
Yup, you are right...but the lesion is not in F though:
"Tabes dorsalis is caused by syphilis. The organism causes a selective destruction of nerve fibers at the point of entrance of the posterior root into the spinal cord, especially in the lower thoracic and lumbosacral regions "

This is from Snell Clinical Neuroanatomy 2010
Spinal cord cross section - lesion sites-screen-shot-2011-06-08-8.43.38-am.png
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  #17  
Old 06-08-2011
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Ok, that makes a lot of sense!

Thank you bebix!!
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Old 06-09-2011
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Quote:
Originally Posted by giuliane View Post
I have a question: but if in both tabes dorsalis and pernicious anemia there are hyporeflexia and hypotonicity (together with the other classic signs of posterior cordonal injury)... then shouldn't there be involvement of the posterior roots as well? otherwise where would Ia afferent fibers from neuromuscluar spindles be interrupted?
(don't know if I expressed myself clearly)
Pernicious anemia has Hyperreflexia.
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Old 06-09-2011
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It can have both, it depends on whether the mostly involved are the posterior or the lateral tracts of the spinal chord: in the first case there is segmental hyporreflexia because of afferent fibers interruption (it becomes evident only if the lesion is quite extended in length), in the latter sub-segmental hyperreflexia, because of pyramidal syndrome.
At least, that's what i think...
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Old 06-09-2011
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Quote:
Originally Posted by giuliane View Post
It can have both, it depends on whether the mostly involved are the posterior or the lateral tracts of the spinal chord: in the first case there is segmental hyporreflexia because of afferent fibers interruption (it becomes evident only if the lesion is quite extended in length), in the latter sub-segmental hyperreflexia, because of pyramidal syndrome.
At least, that's what i think...
In FA, it only states Hyper....

I dont know
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Old 06-11-2011
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Thanks for this, nice one.
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