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* Strange 1
 #846129  
  shinenrise - 12/07/17 03:13
 
  A 53-year-old male complains of difficulty walking and right lower extremity weakness. Stroking the sole of the right foot with a pen elicits toe extension. Which of the following additional findings is likely in this patient?

A. Muscle atrophy
B. Muscle fasciculations
C. Cogwheel rigidity
D. Hyperreflexia
E. Positive straight leg raise test
 
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* Re:Strange 1
#3354522
  drbatista - 12/07/17 06:21
 
  d. Hyperreflexia

Clue=babinski sign +

Lesions Concept, LMN vs UMN

LMN
Flacid paralysis / Hypotonia / Hyporeflexia / Muscle Atrophy

UMN
Hyperreflexia / Clasp knife rigidity / Babinski +/ Spastic paralysis (see in CorticoSpinal Tract demylination)


LMN
Seen with damage of the ventral Horn ( we have a BUNCH of causes) ex. Congenital (Wernig Hoffman) floppy baby

UMN
Seen with damage to the corticospinal tract
,,,,could be because of any demylinating disorder
Trauma/stroke involving the circle of willis
Damage to the internal capsule as well
 
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* Re:Strange 1
#3354524
  anasteps - 12/07/17 08:04
 
  D. UMN LESION  
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* Re:Strange 1
#3354626
  shinenrise - 12/08/17 01:29
 
  Perfect! Yes its a UMN lesion.

everything with UMN is hyper or increased and everything with LMN is low and depressed.

Good job guys !
 
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* Re:Strange 1
#3354627
  shinenrise - 12/08/17 01:32
 
  One more thing to add on : UMN lesions features ( hyperreflexia, spastic paralysis/limb weakness) are also called pyramidal signs.

 
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