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  2. Nasal polyp - Wikipedia

    en.wikipedia.org/wiki/Nasal_polyp

    CT scan can show the full extent of the polyp, which may not be fully appreciated with physical examination alone. Imaging is also required for planning surgical treatment. [7] On a CT scan, a nasal polyp generally has an attenuation of 10–18 Hounsfield units, which is similar to that of mucus. Nasal polyps may have calcification. [14]

  3. Functional endoscopic sinus surgery - Wikipedia

    en.wikipedia.org/wiki/Functional_endoscopic...

    If any nasal polyps obstructing ventilation or drainage are present, they are also removed. [8] In the case of paranasal sinus/nasal cavity tumors (benign or cancerous), an otolaryngologist can perform FESS to remove the growths, sometimes with the help of a neurosurgeon, depending on the extent of the tumor. In some cases, a graft of bone or ...

  4. Orbital emphysema - Wikipedia

    en.wikipedia.org/wiki/Orbital_emphysema

    Orbital emphysema (/ˈɔː(r)bɪt(ə)l ˌemfɪˈsiːmə/, also known as pneumo-orbit [8]) is a medical condition that refers to the trapping of air within the loose subcutaneous around the orbit that is generally characterized by sudden onset swelling and bruising at the impacted eye, with or without deterioration of vision, which the severity depends on the density of air trapped under the ...

  5. Sinusitis - Wikipedia

    en.wikipedia.org/wiki/Sinusitis

    For sinusitis lasting more than 12 weeks, a CT scan is recommended. [65] 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]

  6. Frontonasal dysplasia - Wikipedia

    en.wikipedia.org/wiki/Frontonasal_dysplasia

    Frontonasal dysplasia (FND) is a congenital malformation of the midface. [1] For the diagnosis of FND, a patient should present at least two of the following characteristics: hypertelorism (an increased distance between the eyes), a wide nasal root, vertical midline cleft of the nose and/or upper lip, cleft of the wings of the nose, malformed nasal tip, encephalocele (an opening of the skull ...

  7. Eosinophilic granulomatosis with polyangiitis - Wikipedia

    en.wikipedia.org/wiki/Eosinophilic_granulomatos...

    Eosinophilic granulomatosis with polyangiitis consists of three stages, but not all patients develop all three stages or progress from one stage to the next in the same order; [7] whereas some patients may develop severe or life-threatening complications such as gastrointestinal involvement and heart disease, some patients are only mildly affected, e.g. with skin lesions and nasal polyps. [8]

  8. Choanal atresia - Wikipedia

    en.wikipedia.org/wiki/Choanal_atresia

    Choanal atresia is diagnosed based on the inability to place a nasal catheter, and radiology results (particularly CT scans). Treatment involves maintaining an open airway, and may involve surgery to reopen the airway, potentially with a stent. Choanal atresia is a fairly rare condition, affecting between 1 in 7,000 to 1 in 5,000 live births.

  9. Nasopharyngeal cyst - Wikipedia

    en.wikipedia.org/wiki/Nasopharyngeal_cyst

    In most of the cases incidental diagnosis happens while performing nasal endoscopy. MRI and CT scan can be helpful for further confirmation of diagnosis. On CT scan a low density, well capsulated mass in the roof of nasopharynx is suggestive of Thornwaldt cyst. [9] [10]

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