syringobulbia

[ sə-rĭng′gō-bŭlbē-ə ]

n.

The abnormal presence of a fluid-filled cavity in the brainstem, analogous to syringomyelia.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.