Do lesions grow inwardly on the brain?

itaska21 · Post by **itaska21** » Fri May 13, 2011 10:26 am

Hi, I posted recently on rapidly forming lesions. In one year I developed an 11mm. lesion, and the pre-existing lesion went from 4.2mm to 5mm., and went from being cortical to subcortical. So does that mean it went deeper into the brain, and if so, what are the likely additional affects from this
?

sou · Post by **sou** » Fri May 13, 2011 2:50 pm

The brain is like an apple:

The outside red part of the apple is the brain's gray matter. It consists of the "heads" of the neurons. Damage there means death of the neuron as a whole.

The inner white part of the apple is the brain's white matter. It consists of the neuron's axons, along with their insulation (myelin) and some other kinds of cells. Damage there does not directly kill the nuron.

Of course, not all lesions are real damage. They don't really matter, anyway.