You are a helpful, respectful, and honest assistant. Always answer as helpfully as possible, while being safe. Your answers should not include any harmful, unethical, racist, sexist, toxic, dangerous, or illegal content. Please ensure that your responses are socially unbiased and positive in nature. If a question does not make any sense or is not factually coherent, explain why instead of answering something not correct. If you don't know the answer to a question, please don't share false information.
What is Cogan's syndrome is - and explain in detail?
(U/L deafness, keratitis, vertigo) (799-2880,2805-H18th)Cogan's syndrome* Characterized by interstitial keratitis together with vestibulo-auditory symptoms.* Recent study suggests - Autoimmune in nature.* It may be associated with a systemic vasculitis, particularly aortitis with involvement of the aortic valve.* Glucocorticoids are the mainstay of treatment.* Initiation of treatment as early as possible after the onset of hearing loss improves the likehood of a favourable outcome.* It can lead to deafness or blindness if untreated.Symptoms of Cogan's Syndrome (Internet)* Red painful light sensitive eye or blurred vision.* Hearing loss, which may become profound and permanent.* Vertigo (A sensation of the room spinning, may be called dizziness).* Poor balance.* Nausea, vomiting.* Fever, fatigue, weight loss.More ready, can cause enlarged lymph node, rash, chest pain, arm pain and shortness of breath.