Hello everyone, I'm pretty new to the forums even though I've been reading the threads a lot, and I would appreciate the help I could get on this issue;
To my understanding, syringomyelia causes compression and damage to the anterior commissure which leads to bilateral loss of pain and temperature due to the decussations of Lissauer's tract.
Brown-Sequard syndrome: hemisection, classic example T10, on the contralateral side, loss of pain and temperature sensation.
1) However my issue is(skipping the decussations and ipsi/contralateral part); why is it so that in hemisection (BS syndrome) you get symptoms BELOW the lesion, all the way to the foot, while in syringomyelia, you only get symptoms more or less at the level of the lesions and nothing BELOW, even though the same tract is affected?
2) Another stupid question; do we have 31 seperate pairs of spinothalamic tracts, or do all dermatomes connect to the one and only tract eventually? This sounds stupid sorry..
Maybe it's a stupid and easy question, but I haven't been able to find an answer to this yet and I've searched around a lot.
Thank you, and again, I appreciate your help!
To my understanding, syringomyelia causes compression and damage to the anterior commissure which leads to bilateral loss of pain and temperature due to the decussations of Lissauer's tract.
Brown-Sequard syndrome: hemisection, classic example T10, on the contralateral side, loss of pain and temperature sensation.
1) However my issue is(skipping the decussations and ipsi/contralateral part); why is it so that in hemisection (BS syndrome) you get symptoms BELOW the lesion, all the way to the foot, while in syringomyelia, you only get symptoms more or less at the level of the lesions and nothing BELOW, even though the same tract is affected?
2) Another stupid question; do we have 31 seperate pairs of spinothalamic tracts, or do all dermatomes connect to the one and only tract eventually? This sounds stupid sorry..
Maybe it's a stupid and easy question, but I haven't been able to find an answer to this yet and I've searched around a lot.
Thank you, and again, I appreciate your help!