LATE DIAGNOSIS OF ENLARGED ENDOLYMPHATIC DUCT AND SAC SYNDROME IN A CASE OF UNILATERAL SUDDEN HEARING LOSS WITH RETROCOCHLEAR PATTERN. CASE REPORT
Abstract:
Enlarged Vestibular Aqueduct (EVA) is one inner ear malformation found in 35% of children
with unilateral sensorineural hearing loss.(1) Case reports of late diagnosis of enlarged vestibular
aqueduct in young adulthood are extremely rare. The authors present a case of unilateral sensorineural
hearing loss with sudden onset and retrocochlear pattern in an 18-year-old patient. MRI examination
showed an enlargement of the left endolymphatic sac, without any other anomalies of the inner ear. The
controlateral ear had normal hearing and no imaging abnormalities were found. This is a very rare case
of unilateral enlarged endolymphatic duct and sac syndrome (EEDSS) discovered on MRI (Magnetic
Resonance Imaging) assessment in a case of sudden hearing loss in early adulthood.
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