paranasal sinuses

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par·a·na·sal si·nus·es

the paired air-filled cavities in the bones of the face lined by mucous membrane continuous with that of the nasal cavity; these sinuses are the frontal, sphenoidal, maxillary, and ethmoidal.
Synonym(s): sinus paranasales [TA]

par·a·na·sal si·nus·es

(par'ă-nā'zăl sī'nŭs-ĕz) [TA]
The paired air-filled cavities in the bones of the face lined by mucous membrane continuous with that of the nasal cavity; these sinuses are the frontal, sphenoidal, maxillary, and ethmoidal.

par·a·na·sal si·nus·es

(par'ă-nā'zăl sī'nŭs-ĕz) [TA]
Paired air-filled cavities in bones of face lined by mucous membrane continuous with that of the nasal cavity; frontal, sphenoidal, maxillary, and ethmoidal.


beside the nasal cavity.

paranasal sinuses
mucosa-lined air cavities in the bones of the skull, communicating with the nasal cavity. See also sinus.
Enlarge picture
Paranasal sinuses of the dog. By permission from McCurnin D, Poffenbarger EM, Small Animal Physical Diagnosis and Clinical Procedures, Saunders, 1991
paranasal sinus cysts
occur in horses primarily in the caudal maxillaary sinus and occasionally in the frontal or rostral sinus. Very young or old horses are affected. They present with nasal respiratory obstruction, facial swelling and nasal discharge. An increase in intramaxillary sinus pressure results in displacement of the nasal septum in a significant proportion of cases.
paranasal sinus polyps
rare cause of nasal bleeding in horses.

Patient discussion about paranasal sinuses

Q. My 21 year son has chronic sinus issues, I think, due to many high school sports injuries. Help! His ENT has recommended a "nose job" but our insurance will not cover it. Do you know of any holostic, nutritional or homeopathic solutions to keep this under control? When he gets a headache, it shuts him down and normally goes into a migraine.

A. One of the best, most inexpensive, ways to prevent, treat, and generally care for any sinus related problem is with a saline (salt water) sinus rinse. The one I use is called "Neil Med" and can be purchased at Walgreen's for about $15. It has a plastic bottle with pre-measured, pre-packaged salt that is should be mixed with cooled off sterilized (boiled) water. If I get an infection, using 2 or 3 packets to concentrate the solution gives the lavage a bacteriostatic (stuns/partially kills bacteria), not bacteriocidal (kills bacteria) quality. I do not own Neil Med although I wish I did!! The lavage method also washes out any dust, old mucous, you name it. It should be used prior to the use of any nasal steroid like Flonase if treating allergic rhinitis. Good luck!!

Q. I have been having chronic pain in sinus area and behind my eyes, been to ENT who states it is not infection? I wake up with the pain and go to sleep in severe pain. Its all day and all night. Dr insists that its migraine related and allergy related. I have chronic postnasal drainage. It started 4 months ago when I moved into our new house. The pain makes me extremely fatigue and dizzy at times. I have been referred to the eye doctor, a headache specialist and an allergy specialist. Just recently I have had a CT scan and an MRI, as well as xrays of my sinus. Nothing other than a deviated septum and possible allergies from an ENT has been diagnosed. In the mean time I am waiting for the days to come when I can get into see these specialist. Anyone out there have any of the same symptoms?? Need help here. Soooooo sick of the pain.

A. i have chronic sinusitis and can really relate to what you describe. learned to live with the pain...but still, i use various ways to reduce inflammation in my sinuses, i heat the place up before going to sleep, try to avoid eating or drinking cold stuff.
another thing i do is i heat water (80c) then add a special oil i bought in a chinese medicine store , about 5 drops, and inhale the fumes. nettle tea can do wonders too.

Q. sinus infection and Polups and I can't breath through my nose. What can I do?

A. I have used the expresso machine for the steam only and run that through a glass with some vics in it. Helped but the polups are so large now its hard to get any thing through.

More discussions about paranasal sinuses
References in periodicals archive ?
Merkel cell carcinoma, however, is thought to be derived from a type I mechanoreceptor located at the dermal-epidermal junction Small Cell Neuroendocrine carcinoma in Head and Neck regions is uncommon with only 180 cases of larynx and 75 of Paranasal sinuses being reported in English literature so far.
Computed tomography in the evaluation of pathological lesions of paranasal sinuses.
Mucocoeles of the paranasal sinuses are benign, expansile paranasal sinus masses; with time they slowly enlarge to expand and erode bony structures.
Evaluation of mucoceles of the paranasal sinuses with computed tomography.
Sinusitis is defined as an inflammatory process involving the mucus membrane of the paranasal sinuses and/or the bone.
The paranasal sinuses are ultimately involved in almost all patients.
Significance of electron microscopy in the diagnosis of undifferentiated neoplasms of the nose and paranasal sinuses.
CT scans can provide much more detailed information about the anatomy and abnormalities of the paranasal sinuses than plain films4 especially pathologies within the sphenoid and ethmoid sinuses5,6.
Metastatic tumors of the maxilla, nose and paranasal sinuses.
The diagnosis of metastatic carcinoma to paranasal sinuses and orbit may not be easy.
Malig-nant lymphoma rarely arises in the Paranasal sinuses.
The research team evaluated the MDCT images for the presence of fluid and sediment in the paranasal sinuses and airways, fluid in the ear, frothy fluid in the airways, obscured "ground-glass" appearance or thickening in the lungs, and swelling, fluid or sediment in the stomach.