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inflammation of the membrane lining a sinus, esp a nasal sinus



an inflammation of the paranasal sinuses in man and animals. In humans, acute sinusitis usually arises as a complication of influenza, acute respiratory diseases, or other infectious diseases; chronic sinusitis develops from acute sinusitis that has not been completely cured.

The general symptoms of acute sinusitis include elevated body temperature, headache, abundant nasal discharge, and difficulty in breathing through the nose, most often on one side. With chronic sinusitis, there is usually no increase in body temperature and the other symptoms are less pronounced. Localization of the process determines the symptoms. Sinusitis may be catarrhal or purulent, depending on the type of inflammation. With chronic sinusitis, proliferations of the mucosa (polyps) often form in the paranasal sinuses and the nasal cavity.

Several different forms of sinusitis are distinguished, depending on which sinus is affected. The most common form is maxillary sinusitis, which is an inflammation of the maxillary sinus. With frontal sinusitis, the frontal sinus becomes inflamed; with ethmoid sinusitis, the ethmoidal labyrinth; and with sphenoid sinusitis, the sphenoidal sinus. Sometimes the inflammatory process spreads to all the paranasal sinuses on one or both sides (pansinusitis). Treatment includes the use of medicinal agents, the administration of heat (hot-water bag, compress), and physical therapy. Sometimes surgical treatment is indicated. Prophylaxis includes the timely treatment of the cause of the disease. [23–1294–]


Inflammation of a paranasal sinus.
References in periodicals archive ?
In the Sinus, Allergy and Migraine Study, 100 patients who believed they had sinus headaches were recruited.
Sinus headache, migraine, and the otolaryngologist.
The International Headache Society's classification system does not recognize sinus headache as a diagnosis, said Dr.
These patients had a physician diagnosis of sinus headache; those with a previous diagnosis of migraine were excluded.
(15) Nevertheless, in the American Migraine Study II, 40% of respondents meeting IHS diagnostic criteria for migraine, or an estimated 11.1 million Americans, reported that a physician had diagnosed sinus headache with or without additional headache types.
Eross and his research associates concluded that all 91 patients who did not appear to have sinus headache probably should have been prescribed a triptan, but only 12% of them were.
The study excluded patients with a prior diagnosis of migraine, prior use of triptans, sinus headache with fever or purulent discharge, or radiographic evidence of sinus infection within the past 6 months, said Dr.
In the questionnaire, patients were asked to assess the severity and duration of 22 different symptoms: sinus headache, facial pain and pressure, ear pain and pressure, toothache, clear rhinorrhea, purulent rhinorrhea, postnasal drip, nasal congestion and obstruction, olfaction, fever, fatigue, irritability, cough, sore throat, chills, myalgia, epiphora, itchy eyes, and ophthalmoplegia.
Migraine presentations can vary in real-life clinical settings, leading the doctor as wall as the patient to think the problem is a sinus headache.
Reported symptoms included fatigue, dizziness, postnasal drip, sinus headache or pressure, nasal blockage, skin rashes, earache, eye itching or burning, sore throat, wheezing, sneezing, chest tightness, and green/yellow nasal mucus.