Differential diagnosis
Common causes of SNHL include acoustic neuroma, multiple sclerosis, hypothyroidism, vertebrobasilar insufficiency, or stroke, Meniere's syndrome, drug toxicity, and idiopathic hearing loss. CHL is most frequently caused by cerumen impaction, perforation of the TM, middle ear effusion, atelectasis, and otosclerosis. In addition, a variety of tumors (e.g., squamous cell cancer, exostoses, or cholesteatoma) can cause CHL. MHL may be secondary to presbycusis, medications, and noise-induced hearing loss.
Common causes of SNHL include acoustic neuroma, multiple sclerosis, hypothyroidism, vertebrobasilar insufficiency, or stroke, Meniere's syndrome, drug toxicity, and idiopathic hearing loss. CHL is most frequently caused by cerumen impaction, perforation of the TM, middle ear effusion, atelectasis, and otosclerosis. In addition, a variety of tumors (e.g., squamous cell cancer, exostoses, or cholesteatoma) can cause CHL. MHL may be secondary to presbycusis, medications, and noise-induced hearing loss.
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