The hypothesis that lungfishes are the sister group of amphibians is supported by two possible synapomorphies: loss of a saccus vasculosus and the presence of neurocranial endolymphatic sacs.    From Wordnik.com.  [Panderichthys rhombolepis - The Panda's Thumb] Reference

Meniere's disease is caused by a dysfunction of the endolymphatic sac.    From Wordnik.com.  [Health News from Medical News Today] Reference

The patients received endolymphatic sac to mastoid shunts to drain fluid and relieve symptoms.    From Wordnik.com.  [MedPageToday.com - medical news plus CME for physicians] Reference

The surgery involves inserting a shunt into the endolymphatic sac in the inner ear and draining the fluid inside to relieve symptoms.    From Wordnik.com.  [Medlogs - Recent stories] Reference

VALENCIA, Spain, Nov. 18 -- In Ménière's disease, episodes of vertigo tend to become less frequent over time, but when they don't subside, endolymphatic sac surgery can reduce major spells.    From Wordnik.com.  [MedPageToday.com - medical news plus CME for physicians] Reference

Morgantown, reports on the results of endolymphatic sac surgery for patients with Ménière's disease who did not respond to more conservative therapies, such as low-sodium diets or diuretic medications.    From Wordnik.com.  [Medlogs - Recent stories] Reference