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definitions

schwannosis

[shwä-nō′sĭs]
n.
  1. A non-neoplastic proliferation of Schwann cells in the spaces around the blood vessels of the spinal cord.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.