Chronic sinusitis

Chronic sinusitis is a chronic purulent inflammation of the sinus mucosa. It is more common than acute patients, among which chronic maxillary sinusitis is the most frequent coexistence with chronic ethmoid sinusitis. If there are lesions on one or both sides of the sinuses, it is called polysinusitis or total sinusitis. Chronic ethmoiditis alone Or sphenoid sinusitis accounts for only a few cases.

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