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Ethmoid bone Cribriform Plate

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	Ethmoid bone - Wikipedia, the free encyclopedia
		The ethmoid bone is a bone in the skull that separates the nasal cavity from the brain.
		The ethmoid articulates with fifteen bones: four of the cranium—the frontal, the sphenoid, and the two sphenoidal chonchae; and eleven of the face—the two nasals, two maxillae, two lacrimals, two palatines, two inferior nasal conchae, and the vomer.
		The ethmoid bone is very delicate and is easily injured by a sharp upward blow to the nose, such as a person might suffer by striking an automobile dashboard in a collision.
	en.wikipedia.org /wiki/Ethmoid (406 words)

	ethmoid bone
		The ethmoid bone (os ethmoidale) is a bone in the skull that separates the nasal cavity from the brain.
		The ethmoid bone (os ethmoidale) is exceedingly light and spongy, and cubical in shape; it is situated at the anterior part of the base of the cranium, between the two orbits, at the roof of the nose, and contributes to each of these cavities.
		The ethmoid is ossified in the cartilage of the nasal capsule by three centers: one for the perpendicular plate, and one for each labyrinth.
	www.icorrection.com /Ana-E/ethmoid_bone.php (1237 words)

	AJNR -- Daniels et al. 24 (8): 1618 Figure 3
		The ethmoid infundibulum is the space bounded by the uncinate process anteromedially, the ethmoid bulla posterolaterally, and the lamina papyracea anterolaterally (6).
		In this specimen, the inferior compartment of the FSDP is the ethmoid infundibulum.
		In F', the ethmoid infundibulum is bounded anteriorly by the agger nasi cell and the uncinate process and posteriorly by the ethmoid bulla.
	www.ajnr.org /cgi/content-nw/full/24/8/1618/F3 (549 words)

	Ethmoid Hematomas
		The condition of an ethmoid hematoma is a hematoma that forms in the complex bony structure that exists in the nasal passages between the eyes.
		Ethmoid hematomas appear as soft tissue masses in association with the ethmoid bones and sometimes in the sinuses.
		It is important to define the area affected by the hematoma and whether there is sinusal involvement or not as that has implications as far as treatment with the degree of invasiveness of the surgical procedure and prognosis is concerned.
	evrp.lsu.edu /healthtips/Ethmoid.htm (945 words)

	eMedicine - Sinusitis, Ethmoid, Acute, Surgical Treatment : Article Excerpt by: Michael Mercandetti, MD, MBA, FACS (Site not responding. Last check: 2007-11-01)
		History of the Procedure: Ethmoid sinusitis was often underappreciated for its role as a major causative factor in sinus disease.
		Acute ethmoid sinusitis is usually not abrupt in onset (except in cases caused by diving or swimming where bacterial organisms gain entry to the paranasal structures) (Schuller, 1994).
		A discharge from the nares may be present, the nasal mucosa and turbinates may be edematous and hyperemic, and a purulent discharge may be present.
	www.emedicine.com /ent/byname/sinusitis-ethmoid-acute-surgical-treatment.htm (641 words)

	Anatomy
		The right and left frontal sinuses are located in the forehead region; the maxillary sinuses are in the cheek area; the ethmoid sinuses are found between the eyes; and the sphenoid sinuses lie deep in the center of the skull.
		This complicates the surgeon's task, as does the ethmoid sinuses' adjacency to the eyes and brain, but fortunately, there are common recognizable structures within the ethmoid and new surgical aids to make the process safer.
		Deep within the skull behind the ethmoid sinuses are the sphenoid sinuses, small cavities approximately the size of a large grape.
	www.myentphysician.com /scripts/content/anatomy/index.php?doctor=davidson (572 words)

	Infection Of The Ethmoid Sinus
		Ethmoid sinus infection triggers pain between the eyes, near the bridge of the nose...
		Since the ethmoid sinuses are near the tear ducts in the corner of the eyes...
		Since the ethmoid sinuses are near the tear ducts in the corner of the eyes, inflammation of these cavities...
	www.bad-breath-fix.com /bad-breath-resources/43/Infection-Of-The-Ethmoid-Sinus.html (510 words)

	eMedicine - Sinusitis, Ethmoid, Acute, Surgical Treatment : Article by Michael Mercandetti, MD, MBA, FACS
		Medially, the ethmoid sinus is demarcated by the lamina papyracea, which forms the medial wall of the orbit and the lateral nasal wall.
		Ethmoid opacification in conjunction with opacification of the ethmoid sinus in a patient with orbital fractures.
		Brook I: Bacteriology of acute and chronic ethmoid sinusitis.
	www.emedicine.com /ent/topic341.htm (3897 words)

	ENT Academic Faculty Services: Rhinology & Sinus Surgery - New York Eye & Ear Infirmary
		The middle turbinate (mt) is an appendage of the ethmoid sinus and an important surgical landmark..
		The boundaries of the ethmoid sinus are the lamina papyracea (lp), the middle turbinate (mt) and the floor of the anterior cranial fossa or skull base.
		This section illustrates the removal the inferior or lower ethmoid cells which are encompassed by the dotted line as the procedure progresses from the front to back of the nose.
	www.nyee.edu /ent_rss_sts_ethmoid02.html (1017 words)

	SinusInfoCenter.com - What is an Ethmoidectomy?
		The ethmoid sinus is a honeycomb-like structure and is located between the eyes.
		Anatomically, the ethmoid sinuses are divided into anterior and posterior regions each with a variable number of sinus cells.
		The posterior ethmoid cells may number from 1-5 and their size and structure may be more variable.
	www.sinusinfocenter.com /sinus_faq_11.html (427 words)

	[No title]
		The ethmoid sinuses may be filled with polypoid tissue, causing destruction of the delicate ethmoid septa and expansion of the ethmoid sinuses into the adjacent orbits.
		Ethmoid sinusitis is a frequent cause of orbital cellulitis.
		It is also useful for optimal visualization of the roof of the ethmoid sinuses and the ethmoidomaxillary plate and for judging the degree of orbital extension of frontal mucoceles.
	spinwarp.ucsd.edu /NeuroWeb/Text/ent-23-2.htm (2785 words)

	ENT Academic Faculty Services: Rhinology & Sinus Surgery - New York Eye & Ear Infirmary
		These ethmoid cells literally balloon into the floor of the frontal sinus and are visible due to the contrast between the mucous in the frontal and ethmoid sinuses (1) and the air within the ethmoid or frontal cells (3).
		Individuals with small openings from their frontal sinus to the nose, and scarring within the frontal recess area, are more likely to require removal of the entire floor of the affected frontal sinus, than those who have discrete anatomic anomalies which can be completely removed to permit drainage of the sinus.
		When frontal sinusitis is due to either bone or dense scar from prior surgery obliterating the communication of the frontal sinus to the nose, one approach to restoring drainage is to remove the entire floor of both frontal sinuses.
	www.nyee.edu /ent_rss_sts_frontsinus02.html (1002 words)

	Cancer of the Ethmoid Sinuses - Clinical Services - Head and Neck Cancer - Stanford Comprehensive Cancer Center
		Ethmoid sinus cancer is a less common form of paranasal sinus cancer, and arises more frequently as an adenocarcinoma than other types of paranasal sinus cancer, meaning the cancer originates from the glandular cells, such as those that secrete mucous.
		Nevertheless, early detection and treatment of ethmoid sinus cancer greatly improves survival rates, so it is important not to neglect potential symptoms, particularly if you have been exposed to agents known to increase risk.
		Depending on the type and stage of the tumors, ethmoid sinus cancers are usually treated with surgery and radiation, and in advanced cases chemotherapy.
	cancer.stanford.edu /headneck/sinus_eth.html (491 words)

	ethmoid bone - definition of ethmoid bone by the Online Dictionary from Datasegment.com (Site not responding. Last check: 2007-11-01)
		(b) Pertaining to, or in the region of, the ethmoid bone.
		[1913 Webster] Ethmoid bone (Anat.), a bone of complicated structure through which the olfactory nerves pass out of the cranium and over which they are largely distributed.
		[1913 Webster] ethmoid bone - WordNet (r) 2.0 (August 2003) : ethmoid bone n : one of the eight bones of the cranium; a small bone filled with air spaces that forms part of the eye sockets and the nasal cavity [syn: ethmoid]
	onlinedictionary.datasegment.com /word/ethmoid+bone (120 words)

	Ethmoid sinusitis - Brief Overview of Sinus and Nasal Anatomy Martin J. Citardi, MD
		The ethmoid sinuses: a re-evaluation of surgical resection.
		Benign and malignant tumors of the ethmoid sinus.
		The bone that separates the ethmoid sinuses from the orbits (eye sockets) is thinner than eggshell.
	www.surffine.com /srfn/ethmoid-sinusitis.htm (267 words)

	Ethmoid Bone (Site not responding. Last check: 2007-11-01)
		The "ethmoid bone" is located in front of the sphenoid bone.
		It consists of two masses, one on each side of the nasal cavity, which are joined horizontally by thin "cribriform plates." These plates form part of the roof of the nasal cavity, and nerves (ethmoidal cells) associated with the sense of smell pass through tiny openings in them.
		Portions of the ethmoid bone also form sections of the cranial floor, eye sockets, and nasal cavity walls.
	www.innerbody.com /text/skel45.html (135 words)

	ENT Academic Faculty Services: Rhinology & Sinus Surgery - New York Eye & Ear Infirmary
		Ethmoidectomy is defined as the excision of the cells of the ethmoid sinus or ethmoid bone.
		No matter the approach, the ethmoid sinus is the key or essential element in the surgical treatment of sinusitis.
		The ethmoid sinus is important because all of the other sinuses drain either through or adjacent to this sinus.
	www.nyee.edu /ent_rss_sts_ethmoid01.html (463 words)

	Ethmoid Sinus (Site not responding. Last check: 2007-11-01)
		Thus, an infant is born with 3-4 ethmoid cells and tiny teardrop-shaped maxillary sinuses.
		To evaluate the prevalence of ethmoid sinus abnormalities in adults without clinical history of sinusitis or allergic rhinitis, the brain CT scans of 156 patients were analyzed prospectively.
		Ethmoid Sinus Contemporary sinus surgery typically involves the use of endoscopes thatare passed through the nostrils.
	www.health-findz.com /directory/sinus/ethmoid-sinus.html (827 words)

	Practice Parameters for Sinusitis - Bii. Anatomic Considerations (Site not responding. Last check: 2007-11-01)
		Rudimentary ethmoid sinuses are present at birth but do not begin to enlarge until the child is between 3 and 7 years of age.
		The ethmoid sinuses consist of a complex “honeycomb” of cells varying between 4 and 17 in number.
		The ethmoid sinuses are commonly divided into 2 groups: the anterior cells and the posterior cells.
	www.jcaai.org /pp/sinus_bii.asp (765 words)

	AAAAI - Patients & Consumers Center: Sinusitis: Terminology (Glossary of Terms)
		Anosmia is a common side-effect of blockage of the anterior ethmoid sinuses.
		The goal of FESS is to remove blockages in the ostiomeatal complex thereby improving drainage from the ethmoid and maxillary sinuses.
		This area commonly becomes blocked by swelling of the sinus membranes leading to an infection and mucus accumulation in the maxillary and anterior ethmoid sinus.
	www.aaaai.org /patients/publicedmat/sinusitis/sinusterminology.stm (476 words)

	Sinus Anatomy and Function
		The lateral nasal wall includes portions of the ethmoid, the maxilla, the palatine, the lacrimal, the medial pterygoid plate of the sphenoid, the nasal and the inferior turbinate bones.
		The ethmoid sinuses are well-delineated, fluid-filled structures in a newborn child.
		The anterior and posterior ethmoid arteries arise from the ophthalmic artery in the orbit.
	www.utmb.edu /otoref/Grnds/Paranasal-Sinus-2002-01/Paranasal-sinus-2002-01.htm (4391 words)

	Ethmoid Sinus
		The ethmoid sinuses are located within the human skull between the eye sockets and above the nose.
		Ethmoid sinuses are matchbox-sized area filled with 7 to 10 interconnected bubbles made of very thin-walled bone.
		This reduces the flow of mucous, which result in the accumulation of mucous in the ethmoid sinuses.
	www.sinus-pro.com /ethmoid_sinus.asp (143 words)

	Advanced Sinus Carcinoma Mistaken for a Malignant Glioma (Site not responding. Last check: 2007-11-01)
		A tumour mass involving the ethmoid sinus, the cribriform plate and the frontal lobe of the brain should be assumed to originate from the ethmoid sinus.
		Direct spread of an ethmoid sinus carcinoma through the frontal bone and lamina cribrosa to the frontal lobe of the brain is not unusual.
		The corollary in the case of this is that a patient with a tumour involving the ethmoid sinus and the frontal lobe of brain prompt referral to an Otolaryngologist to obtain endoscopic biopsies of the ethmoid mass is advocated.
	www.ispub.com /ostia/index.php?xmlFilePath=journals/ijorl/vol3n2/sinus.xml (1096 words)

	ENT Journal
		After a very large posterior ethmoid cell was cleaned out, a second posterior ethmoid cell was found lateral and posterior to the left sphenoid sinus (figure, C).
		Posterior ethmoid cells that are intimately proximal to the optic nerve are considered to be Onodi cells.
		The optic nerve in the posterior ethmoid in Asians.
	www.entjournal.com /Past_Issues.htm?ID=3135 (692 words)

	II. Osteology. 5a. 6. Ethmoid bone. Gray, Henry. 1918. Anatomy of the Human Body.
		The ethmoid bone is exceedingly light and spongy, and cubical in shape; it is situated at the anterior part of the base of the cranium, between the two orbits, at the roof of the nose, and contributes to each of these cavities.
		Lateral wall of nasal cavity, showing ethmoid bone in position.
		In front of the lamina papyracea are some broken air cells which are overlapped and completed by the lacrimal bone and the frontal process of the maxilla.
	www.bartleby.com /107/36.html (1277 words)

	Stanford Cancer Center - Cancer of the Ethmoid Sinuses \| Cancer Types \| Stanford Cancer Center (Site not responding. Last check: 2007-11-01)
		The ethmoid sinuses are a subset of the paranasal sinuses and can generally be thought of as the sinuses, or cavities, in the small area above the nose between the eyes.
		Tobacco's role in the development of ethmoid sinus cancer is less clear.
		Tissues in the ethmoid sinuses have many blood vessels and bleeding is one of the more common risks associated with surgery.
	cancer.stanfordhospital.com /OldSite/cancerTypes/headAndNeck/paranasalSinuses/ethmoidSinus (476 words)

	Ethmoid bone - Encyclopedia, History, Geography and Biography
		Ethmoid bone - Encyclopedia, History, Geography and Biography
		The ethmoid articulates with fifteen bones: four of the cranium—the frontal, the sphenoid, and the two sphenoidal conchæ; and eleven of the face—the two nasals, two maxillæ, two lacrimals, two palatines, two inferior nasal conchæ, and the vomer.
		Ethmoid bone, Parts, Articulations, Injuries, See also, Skeletal system and Skull.
	www.arikah.com /encyclopedia/Ethmoid (356 words)

	AAO-HNSF: Ethmoid Mucoceles May Occur Post-Endoscopic Ethmoidectomy as well as With Open Procedures (Site not responding. Last check: 2007-11-01)
		SAN DIEGO, CA -- September 22, 2002 -- Postoperative ethmoid mucoceles may be just as likely to develop after endoscopic ethmoidectomy as they are after external and open procedures, according to Dr. Nicolas Busaba, assistant professor of otolaryngology at Harvard Medical School in Boston.
		Because of the paucity of information in the literature regarding post-endoscopic ethmoid mucoceles, Dr. Busaba and colleagues sought to determine the post-endoscopic incidence of this complication.
		An ethmoid round bulge was observed in five patients, and the treating physicians observed middle meatus mucopurulent drainage in eight patients.
	www.pslgroup.com /dg/21e752.htm (472 words)

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