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Medicine

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Neurology

Question
18 out of 25
 

Which of the following is a feature of Medial Medullary Syndrome: (PGI May 2011)



A Ipsilateral numbness of face and trunk

B Horner’s syndrome

C Ipsilateral ataxia

D Contralateral hemiplegia

Ans. D

Contralateral hemiplegia

Medial Medullary Syndrome

Symptoms & signs

Structures involved

1). Paralysis with atrophy of half the tongue

Ipsilateral XII nerve nucleus

2). Paralysis of arm, leg sparing face

Contralateral pyramidal tract.

3). Impaired proprioception

Contralateral Medial lemniscus

Cut section at Medulla

Total unilateral medullary syndrome (occlusion of vertebral artery) combination of lateral + medial medullary syndrome

Summary

1). Lateral medullary syndrome = Ipsilateral 10th, 8th, 5th, Horner syndrome, Contra lateral loss of pain touch and temperature.

2). Medial medullary syndrome = Ipsilateral 12th nerve palsy,C/L hemiparesis, C/L loss of position and vibration sense.

(In Right side 12th nerve LMN palsy, on protruding tongue, it deviates to same side (Right Side)

If lesion occur at jugular foramen (Just outside the skull) 9th, 10th , 11th , 12th nerve palsy occur.

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