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  2. Sinusitis - Wikipedia

    en.wikipedia.org/wiki/Sinusitis

    On a CT scan, acute sinus secretions have a radiodensity of 10 to 25 Hounsfield units (HU), but in a more chronic state they become more viscous, with a radiodensity of 30 to 60 HU. [67] Nasal endoscopy and clinical symptoms are also used to make a positive diagnosis. [28] A tissue sample for histology and cultures can also be collected and ...

  3. Rhinosinusitis - Wikipedia

    en.wikipedia.org/wiki/Rhinosinusitis

    The functional unity of the two mucosa speaks in favor of this replacement. A distinction is made between acute and chronic rhinosinusitis. Acute sinusitis lasts a maximum of 12 weeks. The clinical symptoms of acute rhinosinusitis are purulent nasal secretion, nasal obstruction and/or tension headache or feeling of fullness in the facial area ...

  4. Nasal polyp - Wikipedia

    en.wikipedia.org/wiki/Nasal_polyp

    Of people with chronic rhinosinusitis, 10% to 54% also have allergies. An estimated 40% to 80% of people with sensitivity to aspirin will develop nasal polyposis. [ 6 ] In people with cystic fibrosis, nasal polyps are noted in 37% to 48%.

  5. Odontogenic sinusitis - Wikipedia

    en.wikipedia.org/wiki/Odontogenic_sinusitis

    The etiology of odontogenic sinusitis is primarily related to dental infections or procedures. Preliminary studies suggest that odontogenic sinusitis has different biological mechanisms from acute or chronic rhinosinusitis. [4] Dental conditions such as gum disease, periapical abscesses, or tooth decay can lead to odontogenic sinusitis ...

  6. Upper respiratory tract infection - Wikipedia

    en.wikipedia.org/wiki/Upper_respiratory_tract...

    An upper respiratory tract infection (URTI) is an illness caused by an acute infection, which involves the upper respiratory tract, including the nose, sinuses, pharynx, larynx or trachea. [ 3 ] [ 4 ] This commonly includes nasal obstruction, sore throat, tonsillitis , pharyngitis , laryngitis , sinusitis , otitis media , and the common cold .

  7. Rhinitis - Wikipedia

    en.wikipedia.org/wiki/Rhinitis

    Rhinitis is very common. Allergic rhinitis is more common in some countries than others; in the United States, about 10–30% of adults are affected annually. [12] Mixed rhinitis (MR) refers to patients with nonallergic rhinitis and allergic rhinitis. MR is a specific rhinitis subtype. It may represent between 50 and 70% of all AR patients.

  8. Fungal sinusitis - Wikipedia

    en.wikipedia.org/wiki/Fungal_sinusitis

    Fungal sinusitis or fungal rhinosinusitis is the inflammation of the lining mucosa of the paranasal sinuses due to a fungal infection. [1] [2] It occurs in people with reduced immunity.

  9. Aerosinusitis - Wikipedia

    en.wikipedia.org/wiki/Aerosinusitis

    Two types of acute barotrauma are observed: squeeze and reverse squeeze. On ascent, the air in the paranasal sinuses will expand according to Boyle's law, contracting during descent. Normally, the sinuses drain into the nasal cavity through small ostia, which permit mucociliary clearance and ventilation that equilibrates pressure. However, when ...