03/10/2026
Brain Stem Syndrome: Brain stem আমাদের CNS একটি Vital part.এর কোন অংশে Lesion হলে কি ধরনের Feature হয় সেটা আমাদের একটু জানা দরকার,,চলুন জেনে নেই সে ধরনের কিছু Lesion এর Feature.
🔶Weber Syndrome:
✅Lesion:mid brain due to infarction of
Posterior Cerebral Artery
✳Ipsilateral Side: 3rd nerve palsy
Contralateral Side:Pyramidal tract
🔶Ventral pontine Syndrome/Millard Gubler
Syndrome:
✅Lesion:Ventral part of lower end of Pons
due to infarction of pontine perforating artery
or basilar artery
✳️Ipsilateral side:7th & 8th CN
Contralateral :Pyramidal tract
🔶Lateral Pontine Syndrome/AICA Syndrome:
✅Lesion:Infero-lateral part of pons due to
infarction of Anterior-inferior cerebellar artery
✳️Ipsilateral side:
CN 7 & 8
middle cerebellar peduncle
Sympathetic trunk
Contralateral side:Spino-thalamic tract
🔶Medial Medullary Syndrome
✅Lesion:Medial part of medulla due to
infarction of anterior spinal artery or vertibral
artery
✳️Ipsilateral Side:Medial longitudinal
Fasciculus
Medial Leminiscus
12th CN
Contralateral: Pyramidal tract
🔶Lateral Medullary Syndrome/PICA syndrome
✅ Lesion in lateral medulla due to infarction of Posterior inferior cerebellar artery
✳️Ipsilateral side :
Spino-cerebellar tract
Sympathetic trunk
Sensory part of 5th CN
CN:9,10,11
Contralateral side:Spino-thalamic tract