In what other medical condition or disease process, besides Meniere's disease, does endolymphatic hydrops present?
Answer
Endolymphatic hydrops (EH) is not a diagnosis. EH refers to a physiologic and anatomical condition seen within the temporal bones. Endolymphatic hydrops (overproduction of endolymph) is thought to occur in the cochlea and causes cochlear hydrops. In EH, there is distension of Reissner's membrane. Endolymphatic hydrops has been associated with Meniere's disease. Many sources consider EH to be the ''cause'' of Meniere's disease. The cause of EH is essentially unknown. EH-like symptoms may be seen with syphilis and may be associated with allergies or other disorders.
Meniere's disease is a clinical diagnosis. Meniere's is typically characterized by fluctuating sensorineural hearing loss, episodes of vertigo and pressure or tinnitus associated with spells. A classic Meniere's spell lasts two to eight hours.
William Slattery, MD
Neurotologist, House Ear Institute, Los Angeles, California
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