The symptom list is identical to MAV.
“Symptoms typical of hydrops include pressure or fullness in the ears (aural fullness), tinnitus (ringing or other noise in the ears), hearing loss, dizziness, and imbalance.”
Diagnosis uses Ecog?
“Diagnosis is often clinical—based on the physician’s observations and on the patient’s history, symptoms, and symptom pattern. The clinical diagnosis may be strengthened by the results of certain tests. For example, certain abnormalities in electrocochleography (which tests the response of the eighth cranial nerve to clicks or tones presented to the ear) or audiometry (which tests hearing function) may support a hydrops diagnosis. New research has shown that MRI with contrast in the inner ear can give a definitive diagnosis of endolymphatic hydrops, but likely would not be able to differentiate between primary (Meniere’s) and secondary. This is most commonly not used because clinical diagnosis is often accurate.”
Good going on the test front, that’s quite a list!!