Word: pacchionian
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...followed that idea through, found that a growth in the coverings of the brain is frequently associated with epilepsy. Small whitish bodies called Pacchionian granulations grow out of the arachnoid (middle) membrane. Dr. Ney's belief is that man's upright posture conditions the growth of Pacchionian granulations. The growths frequently erode, in one direction through the dura mater and into the skull, in the other direction through the pia mater to the brain itself. Their final effect often is to peg the brain to the skull...
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