the vascularity of the endolymphatic sac ( es ) in the vestibular aqueduct ( va ) and of periaqueductal bony channels was studied in 18 temporal bones from patients with meniere 's disease and in the same number of control bones with no endolymphatic hydrops and no premortem history of otologic disease .
C0025281
meniere 's disease
C0206586
endolymphatic hydrops