Hydromyelia is a medical condition that involves widening of the intraspinal cavity or is a marked dilatation of the central spinal canal. The central canal of the spinal column is the main area of affectation that results to increased pressure due to fluid accumulation.
dangling participle - a participle (usually at the beginning of a sentence) apparently modifying a word other than the word intended: e.g., `flying across the country' in `flying across the country the Rockies came into view'.
A dangling modifier is a phrase or clause that is not clearly and logically related to the word or words it modifies (i.e. is placed next to). Two notes about dangling modifiers: Unlike a misplaced modifier, a dangling modifier cannot be corrected by simply moving it to a different place in a sentence.