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Topic: Paranasal sinus

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	Paranasal sinus - Wikipedia, the free encyclopedia
		The paranasal sinuses are eight (four pairs) air-filled spaces, or sinuses, within the bones of the skull and face.
		The paranasal sinuses are joined to the nasal cavity via small orifices called ostia.
		These become blocked relatively easily by allergic inflammation, or by swelling in the nasal lining which occurs with a cold.
	en.wikipedia.org /wiki/Paranasal_sinus (298 words)

	Paranasal Sinus Cancer Information on Healthline
		Paranasal sinus cancer is a disease in which cancer (malignant) cells are found in the tissues of the paranasal sinuses- the four hollow pockets of bone surrounding the nasal cavity.
		Because the paranasal sinus area lies in an anatomically complex region, tumors in the paranasal sinuses can invade a variety of structures- such as the orbit (the bony cavity protecting the eyeball), the brain, the optic nerves, and the carotid arteries- even before symptoms appear.
		Paranasal sinus cancer represents 3% of all cancers in the upper aerodigestive tract (air and food passages) and less than 1% of all malignancies in the body.
	www.healthline.com /galecontent/paranasal-sinus-cancer (1190 words)

	Paranasal Sinus and Nasal Cavity Cancer Treatment - National Cancer Institute
		Cancer of the paranasal sinus and nasal cavity is a disease in which cancer (malignant) cells are found in the tissues of the paranasal sinuses or nasal cavity.
		There are several paranasal sinuses, including the frontal sinuses above the nose, the maxillary sinuses in the upper part of either side of the upper jawbone, the ethmoid sinuses just behind either side of the upper nose, and the sphenoid sinus behind the ethmoid sinus in the center of the skull.
		Much less often, cancer of the paranasal sinus and nasal cavity starts in the color-making cells called melanocytes, and is called a melanoma.
	www.cancer.gov /cancerinfo/pdq/treatment/paranasalsinus/patient (521 words)

	Paranasal Sinus and Nasal Cavity Cancer
		Destruction of the base of skull (anterior cranial fossa), cavernous sinus, or the pterygoid process; infiltration of the mucous membranes of the nasopharynx; or nonresectable lymph node metastases are relative contraindications to surgery.
		For maxillary sinus tumors (small lesions of the infrastructure): surgical resection postoperative irradiation should be considered for close margins (particularly in tumors of the suprastructure) 2.
		For maxillary sinus tumors: surgical resection with high-dose preoperative or postoperative irradiation 2.
	www.medhelp.org /lib/cancernet/102892.htm (3404 words)

	Paranasal sinus and nasal cavity cancer, maxilary cancer - www.orebroll.se
		Diagnosis of cancer of the nasal cavity and paranasal sinus
		There are several paired paranasal sinuses including the maxillary sinuses in the upper jaw, the frontal sinuses above the nose in the lower part of the forehead, the ethmoid sinuses between the nasal cavity and the orbit and the sphenoid sinus behind the nasopharynx area in the center of the lower part of the skull.
		Adenocarcinoma of the nasal cavity and paranasal sinuses
	www.orebroll.se /huv/HUV_page____5603.aspx (2224 words)

	Stanford Cancer Center - Paranasal Sinus Cancer (Site not responding. Last check: 2007-10-21)
		The paranasal sinuses can be divided in to the maxillary sinuses (beneath the cheeks and on the sides of the nose), ethmoid sinuses (above the nose, between the eyes), and the sphenoid sinuses (deep behind the nose between the eyes), and cancers can arise in each of these structures.
		Cancers in the paranasal sinuses are typically squamous cell carcinomas, meaning they arise from flat, thin cells in the epidermis lining the paranasal sinus.
		Depending on the type and stage of the tumors, paranasal sinus cancers are usually treated with surgery and radiation, and in advanced cases chemotherapy.
	cancer.stanfordhospital.com /OldSite/cancerTypes/headAndNeck/paranasalSinuses/default (513 words)

	Paranasal sinus cancer : Cancerbackup (Site not responding. Last check: 2007-10-21)
		Each space, or sinus, is lined with cells that produce mucus to prevent the lining of the nose from drying out, and moisten the air that we breathe.
		Less than 600 new cases of paranasal sinus cancer are diagnosed in the UK each year.
		Paranasal sinus cancer is not infectious and cannot be passed on to other people.
	www.cancerbackup.org.uk /Cancertype/Headneck/Typesofheadneckcancers/Paranasalsinuscancer (1873 words)

	Medcyclopaedia - Paranasal sinus (Site not responding. Last check: 2007-10-21)
		Injuries to the paranasal sinuses radiologically appear as homogenous opacification of the sinuses as a result of blood, haematoma or airfluid level.
		Although plain radiographs may be taken initially, CT is often required for assessing the extent of the bony injury and, in the case of orbital floor fractures extending into the roof of the maxillary antrum, trapped orbital contents.
		A fracture through the roof of the maxillary sinus near the infraorbital canal which may result in adjacent mucosa swelling, haematoma or orbital content herniation into the sinus (Fig.1).
	medcyclopaedia.com /library/topics/volume_vii/p/PARANASAL_SINUS.aspx (509 words)

	Paranasal sinus and nasal cavity cancer
		Surgery is commonly used to remove cancers of the paranasal sinus or nasal cavity.
		Because the paranasal sinuses and nasal cavity help in talking and breathing, and are close to the face, patients may need special help adjusting to the side effects of the cancer and its treatment.
		Treatment of cancer of the paranasal sinus and nasal cavity depends on where the cancer is, the stage of the disease, and the patient's age and overall health.
	www.meds.com /pdq/paranasal_pat.html (3085 words)

	ACS :: How Are Nasal Cavity and Paranasal Sinus Cancers Staged?
		Nasal cavity and paranasal sinus cancers are staged using a system that is agreed upon by the American Joint Committee on Cancer (AJCC).The AJCC/TNM System describes the extent of the primary Tumor (T), the absence or presence of metastasis to nearby lymph Nodes (N), and the absence or presence of distant Metastasis (M).
		The cancer has eroded or destroyed some of the bones of the maxillary sinus, such as the hard palate (the floor of the maxillary sinus) and/or the middle meatus of the nasal cavity (a mound of tissue that overlies the opening into the maxillary sinus).
		For all patients with nasal cavity or paranasal sinus cancer, the relative 5-year survival is 54%.
	www.cancer.org /docroot/cri/content/cri_2_4_3x_how_is_nasal_cavity_and_paranasal_cancer_staged.asp (1716 words)

	Paranasal Sinus Carcinoma
		Craniofacial resection for tumors of the nasal cavity and paranasal sinuses.
		Gullane PJ, Conley J. Carcinoma of the maxillary sinus: a correlation of the clinical course with orbital involvement, pterygoid erosion or pterygopalatine invasion and cervical metastases.
		Benign and malignant tumors of the ethmoid sinus.
	www.bcm.edu /oto/grand/61793.html (2597 words)

	Computed Tomography (CAT scan or CT ) of the Sinuses
		The paranasal sinuses are hollow, air-filled spaces located within the bones of the face and surrounding the nasal cavity.
		The paranasal sinuses are lined with a special tissue called a nasal mucous membrane that secretes mucus to keep the nose and sinuses moist and thus to humidify the air passing toward the lungs.
		CT is able to detect sinuses that are filled with fluid or sinus membranes that are thickened.
	www.radiologyinfo.org /content/sinusct.htm (1409 words)

	Paranasal Sinus and Nasal Cavity Cancer: (Site not responding. Last check: 2007-10-21)
		Once cancer of the paranasal sinus and nasal cavity is found, more tests will be done to find out if cancer cells have spread to other parts of the body.
		There are treatments for all patients with cancer of the paranasal sinus and nasal cavity.
		Radiation therapy is also a common treatment of cancer of the paranasal sinus and nasal cavity.
	www.acor.org /cnet/62725.html (3517 words)

	HON Allergy Glossary Sinus
		Sinus means 'cavity', many structures of the human body are thus called sinuses.
		However, the term generally refers to the paranasal sinus.
		The sinuses (paranasal sinuses) are air cavities within the facial bones.
	www.hon.ch /Library/Theme/Allergy/Glossary/sinus.html (64 words)

	Stages of cancer of the paranasal sinus and nasal cavity
		After cancer of the paranasal sinus and nasal cavity is found, more tests will be done to find out if cancer cells have spread to other parts of the body.
		The cancer is in only the maxillary sinus and has not destroyed any of the bone in the sinus.
		The cancer has spread to the cheek, the back of the maxillary sinus, the eye socket, or the ethmoid sinus in front of the maxillary sinus.
	www.jalanetipot.com /sinus-articles/stages-cancer.html (413 words)

	PARANASAL SINUSES AND DISORDERS - Dr.G.K.HEBBAR'S ENT ENDOSCOPY CENTRE (Site not responding. Last check: 2007-10-21)
		In contrast to the relative ease of diagnosing acute sinusitis, diagnosis of headache and facial pain associated with chronic sinus disease requires careful history and meticulous evaluation.
		Accurate diagnosis of chronic sinus disease therefore requires a careful history, comprehensive nasal endoscopic examination, and CT scan of the sinus area.
		When chronic sinus disease is suspected a CT scan of the Osteomeatal complex may be performed.
	entcentre.faithweb.com /faqs/ParanasalSinusesDisorders/ParanasalSinusesAndDisorders.htm (1261 words)

	Paranasal sinus and nasal cavity cancer
		For maxillary sinus tumors: surgical resection with high-dose preoperative or postoperative irradiation
		For maxillary sinus tumors: surgical resection with high-dose preoperative or postoperative radiotherapy
		For maxillary sinus tumors, ethmoid sinus tumors, nasal cavity tumors, and nasal vestibule tumors, clinical trials for advanced tumors should be considered to evaluate chemotherapy preoperatively or before radiation therapy, as adjuvant therapy after surgery or after combined modality therapy.
	www.uoc.muni.cz /guidelines/8orl/PARNASAL.htm (3532 words)

	ACS :: What's New in Nasal Cavity and Paranasal Sinus Cancer Research and Treatment?
		Research on better treatment for nasal cavity and paranasal sinus cancer is now being done at many medical centers, university hospitals, and other institutions across the nation.
		Genetics: Although we don't know of any inherited tendencies for nasal cavity and paranasal sinus cancer, scientists are discovering changes in the genes in these cancers that occur during the patient's lifetime.
		Because nasal cavity and paranasal sinus cancers are rare, this approach has not yet been tested much for these tumors.
	www.cancer.org /docroot/cri/content/cri_2_4_6x_whats_new_in_nasal_cavity_and_paranasal_cancer_research_and_treatment.asp (704 words)

	Medical Dictionary: Paranasal sinus - WrongDiagnosis.com
		Paranasal sinus: any of the paired sinuses in the bones of the face adjacent to the nasal cavity that are lined with mucous membrane that is continuous with lining of the nasal cavities
		Paranasal sinus : air\-filled extensions of the respiratory part of the nasal cavity into the frontal, ethmoid, sphenoid, and maxillary cranial bones, lined by the ciliated mucous membranes of the nasal cavity.
		A hierarchical classification of Paranasal sinus: The following list attempts to classify Paranasal sinus into categories where each line is subset of the next.
	www.wrongdiagnosis.com /medical/paranasal_sinus.htm (191 words)

	Paranasal sinus surgery...
		Weve performed 349 procedures in 239 patients: 140 etinoidectomies, 194 maxillary sinus procedures, 12 frontal sinus and three of sphenoidal sinuses.
		All 239 patients were medical treat ment failures, therefore, surgery was indicated We found minor complications in 2% of our patients, and major complications in 1.4% during the operative period, all were immediately recognized and treated, with to fatal outeome.
		We found excellent results in 94% of the patients with recurrent and chronic sinusitis, and 82% in patients with sinunasal polyposis.
	www.imbiomed.com.mx /ABC/BCv39n2/english/Zbc42-02.html (200 words)

	Paranasal sinus - Search Results - MSN Encarta
		Paranasal sinus - Search Results - MSN Encarta
		Sinuses, Paranasal, air-filled, mucus-lined cavities in the head and cheekbones that drain into the nasal cavity.
		Sinuses are cavities in the frontal bones, the sphenoid bones, the maxillary bone, and...
	encarta.msn.com /encnet/refpages/search.aspx?q=Paranasal+sinus (108 words)

	Paranasal Sinus and Nasal Cavity Cancer
		Stage II — Cancer has spread to bone around the maxillary sinus, including the roof of the mouth and the nose, but not to bones at the back of the maxillary sinus or the base of the skull.
		The prognosis depends on where the cancer is in the sinuses, whether the cancer is just in the area where it started or has spread to other tissues (the stage), and the patient's general state of health.
		Five-year survival rates for people with nasal cavity and sinus cancer range from 11 percent for people with advanced cancers to almost 100 percent for people with very small cancers that have not spread and are found and treated early.
	www.clevelandclinic.org /health/health-info/docs/3800/3805.asp?index=12217 (1137 words)

	Paranasal Sinus and Nasal Cavity Cancer
		The majority of tumors of the paranasal sinuses present with advanced disease, and cure rates are generally poor (≤50%).
		Destruction of the base of skull (i.e., anterior cranial fossa), cavernous sinus, or the pterygoid process; infiltration of the mucous membranes of the nasopharynx; or nonresectable lymph node metastases are relative contraindications to surgery.
		For maxillary sinus tumors, ethmoid sinus tumors, nasal cavity tumors, and nasal vestibule tumors, clinical trials using chemotherapy should be considered.
	www.meb.uni-bonn.de /cancer.gov/CDR0000062931.html (3962 words)

	Nasal cavity cancer, paranasal sinus and: Treatment - Patient Information [NCI PDQ] - SJMMC, Ann Arbor, Michigan MI
		Staging systems have been established for the most common paranasal sinus cavity cancers.
		In stage II, cancer has spread to bone around the maxillary sinus, including the roof of the mouth and the nose, but not to bones at the back of the maxillary sinus or the base of the skull.
		In stage II, cancer is found in two areas (of either the nasal cavity or the ethmoid sinus) or has spread to a nearby area; cancer may have spread into bone.
	www.sjmercyhealth.org /14731.cfm (3598 words)

	Amazon.com: Endoscopic Paranasal Sinus Surgery: Books: Dale H. Rice,Steven D. Schaefer,Lewis E. Calver (Site not responding. Last check: 2007-10-21)
		The revised and expanded Second Edition of this surgical atlas and guide shows the latest refinements in the endoscopic surgical techniques used for sinusitis, describes new applications of endoscopes in surgical treatment of other conditions, and offers far more comprehensive guidance on patient management before, during, and after surgery.
		Two new chapters, one by an internist, discuss the medical treatment of sinusitis; a third focuses on pediatric sinus disease; and four others cover ancillary procedures, postoperative care, complications, and revision surgery.
		New edition of an atlas for otolaryngology practitioners on endoscopic surgical techniques for the paranasal sinus.
	www.amazon.com /exec/obidos/tg/detail/-/0881679461?v=glance (437 words)

	Paranasal sinus and nasal cavity cancer
		The most common cell type for paranasal sinus and nasal cavity cancers is squamous cell carcinoma.
		For maxillary sinus tumors, extension to base of skull and nasopharynx is
		For maxillary sinus tumors, ethmoid sinus tumors, nasal cavity tumors, and nasal vestibule tumors, clinical trials using chemotherapy should be considered.[8]
	cancerweb.ncl.ac.uk /cancernet/102892.html (3590 words)

	What Is Paranasal Sinus and Nasal Cavity Cancer
		Head and Neck Cancer: Paranasal Sinus and Nasal Cavity Cancer
		For information about ongoing clinical trials at the Carole and Ray Neag Comprehensive Cancer Center, visit the Clinical Trials Page.
		For a listing of national clinical trials, visit the NCI Cancer.gov Web site.
	cancer.uchc.edu /patients_families/treatment_types/headneck/paranasal.html (2521 words)

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