• A potential complication of sphenoidal sinusitis is cavernous sinus thrombosis. (wikipedia.org)
  • Today, CT is the radiologic examination of choice in evaluating the paranasal sinuses of a patient with sinusitis. (medscape.com)
  • [ 2 ] However, for most patients with sinusitis, noncontrast CT of the paranasal sinuses generally suffices. (medscape.com)
  • At least one type of sinus infection - sphenoid sinusitis - is linked to an ache behind the eyes. (pursuantmedia.com)
  • Although functional endoscopic sinus surgery is the primary approach used today for the surgical treatment of chronic sinusitis, the time-honored external approaches still play a role. (medscape.com)
  • Sinusitis Sinusitis is inflammation of the sinuses, most commonly caused by a viral or bacterial infection or by an allergy. (msdmanuals.com)
  • Generalmente se presenta en conjunción con otras sinusitis paranasales. (bvsalud.org)
  • Isolated sphenoid sinusitis is uncommon. (bvsalud.org)
  • The ethmoid sinuses arise in the ethmoid bone, forming several distinct air cells between the eyes. (medscape.com)
  • Air containing mucosal lined sinuses surround the nasal cavity, which includes the frontal, paired maxillary, sphenoid, and ethmoid sinuses. (nih.gov)
  • Surrounding the nasal cavities are air-containing mucosal lined sinuses, which include the frontal sinuses (superior anterior), ethmoid sinuses (superior), paired maxillary sinuses (lateral), and sphenoid sinuses (posterior). (nih.gov)
  • of the sphenoid or ethmoid sinuses. (msdmanuals.com)
  • The introduction of computed tomography (CT) scanning and its wider use over time have additionally improved the physician's ability to appreciate nuances of paranasal sinus anatomy and accurate disease correlation. (medscape.com)
  • Conclusion EEA to the orbit is challenging, in particular for trainees unfamiliar with nasal and paranasal sinus anatomy. (thieme-connect.com)
  • Cone beam computed tomography images revealed the absence of the sphenoid, frontal, and maxillary sinus, flattening of the condyles and glenoid fossa, and bilateral hypoplasia of the mandibular condyles. (wjgnet.com)
  • citation needed] Proximal structures include: the optic canal and optic nerve, internal carotid artery, cavernous sinus, trigeminal nerve, pituitary gland, and the anterior ethmoidal cells. (wikipedia.org)
  • citation needed] If a fast-growing tumor erodes the floor of the sphenoidal sinus, the vidian nerve could be in danger. (wikipedia.org)
  • citation needed] If the tumor spreads laterally, the cavernous sinus and all its constituent nerves could be in danger. (wikipedia.org)
  • The types of tumor tissues in the renal sinus are extensive, including fat, lymphatic, nerve and vascular tissues. (evanewyork.net)
  • In this procedure, a neurosurgeon reaches the tumor through the nasal passages and sphenoid sinus. (atheistsforhumanrights.org)
  • either a lateral rhinotomy method or a midfacial degloving method can be used for en bloc tumor removal. (medscape.com)
  • Only 1 patient harboring a left cavernous sinus meningioma had tumor recurrence and underwent repeat resection. (medscape.com)
  • The ethmoid sinus (one of six sets of sinuses) is part of the paranasal sinus system and is located between the nose and eyes. (healthline.com)
  • The nose is surrounded by four sets of sinuses, which are hollow cavities in the head. (fjmc.org)
  • The sphenoid sinus is a paired paranasal sinus occurring within the body of the sphenoid bone. (wikipedia.org)
  • Each spehoid sinus is contained within the body of sphenoid bone, being situated just inferior to the sella turcica. (wikipedia.org)
  • When exceptionally large, the sphenoid sinuses may extend into the roots of the pterygoid processes or greater wings of sphenoid bone, and may invade the basilar part of the occipital bone. (wikipedia.org)
  • Because only thin shelves of bone separate the sphenoidal sinuses from the nasal cavities below and hypophyseal fossa above, the pituitary gland can be surgically approached through the roof of the nasal cavities by first passing through the anterioinferior aspect of the sphenoid bone and into the sinuses, followed by entry through the top of the sphenoid bone into the hypophyseal fossa. (wikipedia.org)
  • The maxillary sinus is the largest paranasal sinus and lies inferior to the eyes in the maxillary bone. (medscape.com)
  • The frontal sinus is housed in the frontal bone superior to the eyes in the forehead. (medscape.com)
  • The sphenoid sinus originates in the sphenoid bone at the center of the head. (medscape.com)
  • and (2) the lesser wing of the sphenoid bone. (aao.org)
  • Medially, the frontal bone forms the roof of the ethmoid sinus and extends to the cribriform plate. (aao.org)
  • The pituitary gland is surrounded by bone (sphenoid bone), and it sits in a pouch called the sella turcica. (cancer.ca)
  • This approach requires a wide opening of the sella, the bone that separates the sphenoid sinus from the pituitary. (csrf.net)
  • This technique uses balloon catheters to dilate the maxillary, frontal, and sphenoid natural ostia without bone or soft-tissue removal. (medscape.com)
  • The sphenoid sinus ostium is located on the anterosuperior surface of the sphenoid face, usually medial to the superior turbinate. (medscape.com)
  • The maxillary sinus is one of the four paranasal sinuses, which are sinuses located near the nose. (healthline.com)
  • Together, the sinuses and nose act to filter, heat, vaporize and warm the air brought through the nose into the lungs. (fjmc.org)
  • Should surgery be required, tiny telescopes and cameras will allow the sinus surgeon to reestablish the normal draining patterns within the nose, allowing relief of symptoms. (fjmc.org)
  • The sphenoid sinus is an air-filled sinus that drains into the nose. (mayfieldclinic.com)
  • This chapter provides criteria for assessing permanent impairment from entitled conditions of the nose, sinuses and trachea. (gc.ca)
  • Impairment from malignant conditions of the nose, throat and sinuses is rated within Chapter 18 , Malignant Impairment. (gc.ca)
  • The most direct way to the pituitary is through the nose and the sphenoid sinus. (csrf.net)
  • Cavernous sinus thrombosis is usually caused by the spread of bacteria from infections of the face (including the skin of the nose), orbit, or sinus. (msdmanuals.com)
  • The cavernous sinus is not one of the air-filled sinuses around the nose (the nasal sinuses). (msdmanuals.com)
  • Infection can spread to the orbit from sources such as the sinuses around the nose. (msdmanuals.com)
  • TY - JOUR T1 - Pituitary abscess following expanding sphenoid sinus pyocele: complication of endoscopic endonasal transsphenoidal surgery. (unboundmedicine.com)
  • The use of CT scanning combined with functional endoscopic sinus surgery (FESS) has empowered the modern sinus surgeon to treat patients more effectively, facilitating reduced morbidity and complications. (medscape.com)
  • For those who do not improve on medical therapy, a surgical procedure called Functional Endoscopic Sinus Surgery may be the answer for final relief. (fjmc.org)
  • A complete evaluation including a thorough history, physical examination and an endoscopic evaluation will allow you sinus specialist to make an accurate diagnosis with which to design a customized treatment plan. (fjmc.org)
  • In the 1990s, a distinct impulse came from the otorhinolaryngologists, with the use of the endoscope in functional endoscopic sinus surgery, disclosing the pathway to the sella turcica and the endoscopic approach for resection of pituitary tumors either alone or as an adjunct to the microneurosurgery. (scielo.br)
  • In the endoscopic technique, a rigid endoscope is used to get into the sphenoid sinus and the sella turcica through both nostrils. (scielo.br)
  • Senior et al reported that symptoms improved in 66 of 72 (91.6%) patients following endoscopic sinus surgery, with a mean follow-up time of 7.8 years. (medscape.com)
  • A recently developed alternative to functional endoscopic sinus surgery is balloon sinuplasty. (medscape.com)
  • Further study and long-term outcomes with this technology will determine its role in endoscopic sinus surgery. (medscape.com)
  • Endoscopic sinus surgery is most commonly performed for inflammatory and infectious sinus disease. (medscape.com)
  • Typically, endoscopic sinus surgery is reserved for patients with documented rhinosinusitis, based on a thorough history and a complete physical examination, including CT scans if appropriate, and in whom appropriate medical treatment has failed. (medscape.com)
  • Cavernous sinus thrombosis is a very rare disorder in which a blood clot (thrombosis) forms in the cavernous sinus (a large vein at the base of the skull). (msdmanuals.com)
  • Cavernous sinus thrombosis (CST) is usually caused by the spread of bacteria (usually Staphylococcus aureus ) from a facial, dental, or nasal sinus infection. (msdmanuals.com)
  • Table 10.2 is used to rate impairment of the paranasal sinuses which include the frontal, ethmoid, sphenoid, and maxillary sinuses. (gc.ca)
  • Innervation of the sphenoid sinus comes from branches of the first and second divisions of the trigeminal nerve. (medscape.com)
  • [ 3 ] The frontal sinuses are funnel-shaped structures with their ostia located in the most dependent portion of the cavities. (medscape.com)
  • Mucus gets trapped in the sinus cavities and can become infected: hence, sinus symptoms prevail. (fjmc.org)
  • It can also be caused by temporal lobe seizures, inflamed sinuses, brain tumors and Parkinson's disease. (evanewyork.net)
  • Large tumors can press on the optic nerves and invade the cavernous sinuses, which house the carotid arteries and the nerves involved in eye movement. (mayfieldclinic.com)
  • It's my pleasure to be with you today and to discuss with you some advanced cases of tumors within the paranasal sinuses. (brainlab.com)
  • Both cavernous sinuses are seen indented along their inner aspects by the mass (more on the right), with patent signal void intra-cavernous carotid arteries. (radiopaedia.org)
  • Like the nasal cavity, the wall lining of the sinuses also secretes mucus. (nih.gov)
  • The sinuses themselves produce mucus to cleanse inhaled air of bacteria, viruses, fungus, pollutants and dirt. (fjmc.org)
  • These microbes trigger excessive mucus throughout the sinus and block the nasal cavity. (regressiveantidote.net)
  • anteriorly, an opening of sphenoidal sinus opens into the roof of the nasal cavity via an aperture on the posterior wall of the sphenoethmoidal recess (occurring just superior the choana). (wikipedia.org)
  • The posterior wall of the frontal sinus, which separates the sinus from the anterior cranial fossa, is much thinner than its anterior wall. (medscape.com)
  • Anteriorly: The lesion causes scalloping of the posterior wall of the sphenoid sinus. (radiopaedia.org)
  • granulomatous, inflammatory and infectious processes such as tuberculosis, sarcoidosis, giant cell granuloma, sphenoid sinus mucoceles and others [4]. (bvsalud.org)
  • The pituitary gland is bordered on either side by the cavernous sinuses and below by the sphenoid sinus. (mayfieldclinic.com)
  • A cross-section of the pituitary gland (green) shows its relationship to the optic chiasm, the sphenoid sinus, and the cavernous sinuses on each side. (mayfieldclinic.com)
  • The pituitary gland is related to the optic chiasm above and the sphenoid sinus below. (mayfieldclinic.com)
  • The pituitary gland is behind the nasal cavity and lies just above a sinus (sphenoid sinus). (cancer.ca)
  • In patients with an effective immune system , infection gives rise to chronic headaches and nasal obstruction, and sinus drainage is generally an effective treatment. (pasteur.fr)
  • The micro organism that is most often answerable for irritation and sphenoid sinus infection is Streptococcus pneumonia. (regressiveantidote.net)
  • The viral infection Haemophilus influenza can even spurn sphenoidal sinus ache. (regressiveantidote.net)
  • It could also be because of a sinus infection or injury. (pursuantmedia.com)
  • Sinus infection Problems with the sinuses often include feelings of pain in and around the face. (pursuantmedia.com)
  • One of the main symptoms of a sinus infection is throbbing pain and pressure around the eyeballs. (pursuantmedia.com)
  • 500 The sphenoid sinuses vary in size and shape, and, owing to the lateral displacement of the intervening septum of sphenoid sinuses, are rarely symmetrical. (wikipedia.org)
  • Closure of spontaneous sphenoid sinus cerebrospinal fluid leaks can be challenging because of the relative inaccessibility of the lateral recess and the presence of intracranial hypertension. (nih.gov)
  • The lateral walls are spiral shaped mucosal folds that overlie the turbinates and sinus ducts draining into the ostia. (nih.gov)
  • All of these paranasal sinuses, except the sphenoid, communicate with the nasal cavity via ducts that drain through ostia, which empty into spaces located on the lateral wall. (nih.gov)
  • Behind the posteromedial wall of the maxillary sinus lies the pterygopalatine fossa, a small inverted space that houses several important neurovascular structures and communicates with several skull base foramina. (medscape.com)
  • Vascular lesions with an intraosseus nidus involving the skull base are uncommon and challenging [Gianoli GJ, Amedee RG Vascular malformation of the sphenoid sinus. (upmc.com)
  • 1994)]. We present a pediatric patient, with a life-threatening arteriovenous malformation (AVM) of the sphenoid sinus, clivus, and ventral skull base, who failed routine multimodality management of AVMs. (upmc.com)
  • The secretions from these sinuses drain into the nasal cavity via the thin-walled ostia. (nih.gov)
  • Reports show persistent patient symptom improvement and sinus ostia patency. (medscape.com)
  • An endonasal surgical procedure called a sphenoidotomy may be carried out to enlarge the sphenoid sinus, usually in order to drain it. (wikipedia.org)
  • CT has become a useful diagnostic modality in the evaluation of the paranasal sinuses and an integral part of surgical planning. (medscape.com)
  • In addition to reviewing the scan to determine the presence of disease, CT scans of the sinuses can also be reviewed to evaluate potential areas of occlusion and variations of the patient's sinus anatomy in the setting of surgical planning. (medscape.com)
  • See Dr. Suh, MD, discuss the use of surgical navigation in a sphenoid sinus surgery for a patient with sinus issues that weren't responding to medical therapy. (medtronic.com)
  • NuVent™ EM balloon sinus dilation system is a simple, targeted system for balloon sinus surgery with built-in surgical navigation technology. (medtronic.com)
  • This allows the physician to adequately determine the extent of sinus disease and prepare for appropriate medical and/or surgical management. (fjmc.org)
  • Abstract THE PITUITARY FOSSA, because of its intimate anatomical relationship to the sphenoid sinus, lends itself well to a transsphenoidal surgical approach. (deepdyve.com)
  • strong>A total of 162 patients underwent pituitary adenoma excision through the sphenoid sinus approach. (uwi.edu)
  • The parasellar region encompasses the cavernous sinuses, suprasellar cistern, hypothalamus, and ventral inferior third ventricle. (atheistsforhumanrights.org)
  • The sphenoid sinus is supplied by the sphenopalatine artery, except for the planum sphenoidale, which is supplied by the posterior ethmoidal artery. (medscape.com)
  • Among patients, five underwent the sublabio-septo-sphenoidal approach (abbreviated as "sublabio approach"), seven underwent the sphenoid sinus approach and 150 underwent the nasal septum approach. (uwi.edu)
  • The pair of sphenoid sinuses are separated in the middle by a septum of sphenoid sinuses. (wikipedia.org)
  • The two sphenoid sinuses are separated medially by the septum of sphenoidal sinuses (which is usually asymmetrical). (wikipedia.org)
  • The septum of the sphenoidal sinuses may be partially or completely absent. (wikipedia.org)
  • Medtronic just launched its new NuVent EM Sinus Dilation System for the company's Fusion ENT Navigation System. (medgadget.com)
  • Unlike any other sinus dilation system it features electromagnetic navigation capabilities that help the surgeon place the balloon accurately every time. (medgadget.com)
  • Balloon sinus seekers with built-in AxiEM™ tracking. (medgadget.com)
  • Simple system for balloon sinus surgery. (medgadget.com)
  • Only three parts: balloon sinus seeker, tubing, and inflator. (medgadget.com)
  • For balloon sinus surgery in the frontal, maxillary, and sphenoid sinuses. (medgadget.com)
  • The anterior maxillary sinus wall houses the infraorbital nerve, which runs through the infraorbital canal along the roof of the sinus and sends branches to the soft tissues of the cheek. (medscape.com)
  • The roof of the maxillary sinus is the floor of the orbit. (medscape.com)
  • The thickness of the walls of the sphenoid sinus is variable, with the anterosuperior wall and the roof of the sphenoid sinus (the planum sphenoidale) being the thinnest bones. (medscape.com)
  • The sphenoid sinus empties into the posterior roof. (nih.gov)
  • The sphenoid sinus has been widely opened and a window cut in its bony roof to expose the hypophysis. (stanford.edu)
  • The frontal sinus lies within the anterior orbital roof. (aao.org)
  • The investigators recommended using windows specific to the sinuses or bones to reduce the chance of missing inflammatory paranasal sinus lesions. (medscape.com)
  • The renal sinus is a cavity within the kidney containing the pelvis and calyces, adipose tissue, kidney vessels, nerves and lymphatic tissues, and is a continuation of the renal hilum. (evanewyork.net)
  • The renal sinus is a cavity within the kidney which is occupied by the renal pelvis, renal calyces, blood vessels, nerves and fat. (evanewyork.net)
  • Watch the full video of Dr. Jeffrey Suh's case study about sphenoid sinus surgery. (medtronic.com)
  • If the sphenoid sinuses are affected, surgery and an antifungal treatment are required. (pasteur.fr)
  • Her brain was leaking cerebrospinal fluid through two cracks in the back of her sphenoid sinus, a condition that could have killed her without life-saving surgery. (bostonmagazine.com)
  • Rhinology and sinus surgery have undergone a tremendous expansion since the discourses of Messerklinger and Wigand in the late 1970s. (medscape.com)
  • Aukema et al found that although 12 weeks of treatment with fluticasone propionate nasal drops reduced the need for sinus surgery in patients with nasal polyposis and chronic rhinosinusitis, 14 of 27 patients still required surgery. (medscape.com)
  • The sphenoid sinus is variably pneumatized and may extend as far as the foramen magnum in some patients. (medscape.com)
  • The thinnest portion of the anterior wall is above the canine tooth, called the canine fossa, which is an ideal entry site for addressing various disease processes of the maxillary sinus. (medscape.com)
  • The fungus can develop in the sinuses. (pasteur.fr)
  • Eleven patients with spontaneous, laboratory confirmed, sphenoid sinus cerebrospinal fluid leaks were included. (nih.gov)
  • Physicians who are interested in treating patients with sinus disease must be able to read and interpret sinus CT scans. (medscape.com)
  • Long-lasting cerebrospinal fluid fistula sealing in the sphenoid sinus requires stable reconstruction of the defect in three layers or fat obliteration if the anatomy is unfavourable. (nih.gov)
  • This is why sinus sufferers may have exacerbations of asthma symptoms. (fjmc.org)