A projecting portion of the spiral ligament of the cochlea, bounding the lower edge of the stria vascularis and containing within it a blood vessel, the vas prominens. [ http://medical-dictionary.thefreedictionary.com/spiral+prominence+of+cochlear+duct ]

Synonyms: prominentia spiralis ductus cochlearis spiral prominence of cochlea spiral prominence of cochlear duct

This is just here as a test because I lose it