Olfactory disturbance is a symptom that affects the sense of smell. It can manifest as an inability to smell certain odors, a reduced ability to smell, or an altered perception of smells. It can develop suddenly or gradually, and can be caused by a variety of conditions, such as allergies, sinus infections, head trauma, and neurological disorders.
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(Гайморит, фронтит, Сфеноидит, Этмоидит)
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(Назальный полип)
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(Ринит, Назофарингит, Фарингит)
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