Pathogenesis of Menière's disease

Area of Science:

• Otolaryngology
• Pathology
• Genetics

Background:

• Endolymphatic hydrops is a hallmark of Menière's disease.
• However, exceptions exist, suggesting varied etiologies.
• Endolymph malabsorption, particularly in the endolymphatic sac, is implicated.

Purpose of the Study:

• To explore the pathogenesis of Menière's disease.
• To identify associated pathologic conditions and anatomical variations.
• To investigate the multifactorial etiologic bases.

Main Methods:

• Review of pathologic findings in Menière's disease cases.
• Analysis of temporal bone conditions and anatomical variations.
• Examination of evidence for multifactorial inheritance.

Main Results:

• Endolymphatic hydrops may result from endolymph malabsorption due to endolymphatic sac dysfunction.
• Associated conditions include syphilis, temporal bone fractures, otosclerosis, and chronic otitis media.
• Anatomical variations like mastoid hypoplasia and sigmoid sinus displacement are common.

Conclusions:

• Menière's disease pathogenesis involves endolymph malabsorption and endolymphatic sac dysfunction.
• Multifactorial inheritance and environmental factors contribute to the disease.
• Further research into autoimmune reactions and viral inflammation is warranted.