In a classical case of Meniere’s disease which one of the following statement is true –
**Core Concept**
Meniere's disease is a disorder of the inner ear characterized by a triad of symptoms: vertigo, tinnitus, and hearing loss, particularly sensorineural hearing loss. It is often associated with endolymphatic hydrops, which is the abnormal dilation of the endolymphatic space in the inner ear.
**Why the Correct Answer is Right**
The correct answer is related to the pathophysiology of Meniere's disease, which involves the endolymphatic space. The endolymphatic space is filled with endolymph, a fluid rich in potassium ions. In Meniere's disease, the endolymphatic space becomes dilated, leading to an imbalance in the ionic composition of the endolymph and the perilymph, which surrounds the sensory hair cells. This imbalance disrupts the normal functioning of the sensory hair cells, leading to the symptoms of Meniere's disease. The correct answer is related to the role of the endolymphatic space in the pathophysiology of Meniere's disease.
**Why Each Wrong Option is Incorrect**
**Option A:** This option is incorrect because it does not accurately describe the pathophysiology of Meniere's disease. While the vestibulocochlear nerve is involved in Meniere's disease, the symptoms are not primarily due to damage to the nerve itself.
**Option B:** This option is incorrect because it does not accurately describe the endolymphatic hydrops associated with Meniere's disease. While the endolymphatic space is involved in the pathophysiology of Meniere's disease, the term "endolymphatic atrophy" is not typically used to describe the condition.
**Option C:** This option is incorrect because it does not accurately describe the role of the endolymphatic space in the pathophysiology of Meniere's disease. While the endolymphatic space is involved in the pathophysiology of Meniere's disease, the symptoms are not primarily due to an imbalance in the ionic composition of the endolymph.
**Clinical Pearl / High-Yield Fact**
A key clinical feature of Meniere's disease is the fluctuating nature of the symptoms, particularly the hearing loss. The symptoms of Meniere's disease can vary in severity and may be triggered by changes in head position, loud noises, or other factors. It is essential to accurately diagnose and manage Meniere's disease to prevent further damage to the inner ear.
**Correct Answer:** B. Endolymphatic hydrops is the characteristic finding in Meniere's disease.