• pharynx
  • The rapidly dividing cells in the mucosal membranes of the pharynx and paranasal sinuses are very sensitive to the effects of radiation. (ajnr.org)
  • 1 The naso-pharynx and sphenoid sinus are especially vulnerable to the effects of radiation treatment of nasopharyngeal carcinoma, because they receive the full radiation dose. (ajnr.org)
  • In the pharynx, these MR abnormalities often resolve, whereas in the paranasal sinuses there is a high incidence of persistent minor abnormalities, including mucosal thickening and fluid levels, months or years after treatment for nasopharyngeal carcinoma. (ajnr.org)
  • foramen
  • Coronal images reveal projection of the sphenoid sinus sidewall beyond the foramen rotundum (r). (blogspot.com)
  • The most specific evidence of such a process is gross sinus wall erosion and flattening or erosion of the rims of vidian canal or the foramen rotundum. (blogspot.com)
  • Skull fractures occur more easily at the thin squamous temporal and parietal bones, the sphenoid sinus, the foramen magnum (the opening at the base of the skull that the spinal cord passes through), the petrous temporal ridge, and the inner portions of the sphenoid wings at the base of the skull. (wikipedia.org)
  • acute
  • They are divided into two acute and chronic sinus infections. (sinustip.info)
  • Even though we get a sinus attack one time or the other, acute and chronic sinus attacks of the more severe kind, should be treated early. (sinustip.info)
  • People with acute chronic sinus symptoms may also have to undergo surgery. (sinustip.info)
  • anterior
  • Surgical options include endoscopic transnasal sphenoidotomy with sufficient removal of the anterior and inferior walls of the sinus. (radiopaedia.org)
  • The apertures are located high on the anterior walls of the sinuses themselves. (wikipedia.org)
  • secretions
  • As with other mucoceles, they occur from accumulation and retention of mucoid secretions within the sinus and in turn can lead to thinning, distension and erosion of one or more of its bony walls. (radiopaedia.org)
  • The MR imaging reports of patients undergoing imaging after radiation therapy treatment for nasopharyngeal carcinoma between 1995 and 2006 were reviewed to identify patients with exophytic polyps in the nasopharynx or a mass in the sphenoid sinus that did not have the typical features of posttreatment inflammatory sinus changes (mild thickening and mucosal enhancement and/or secretions of high T2 and low T1 signal intensity). (ajnr.org)
  • mucoceles
  • 9. Razmpa E, Naghibzadeh B, Bagheri A, Sadeghi M, Khak M. The clinical manifestation, evaluation and surgical management of sphenoid sinus mucoceles: a case series and literature review. (radiopaedia.org)
  • The main differential consideration in an opacified sinus is an expansile or erosive process in the sphenoid sinus (e.g., mucoceles or polyps). (blogspot.com)
  • symptoms
  • Symptoms Usual symptoms found in the patients suffering from allergies, sinus dizziness are facial pain and colored nasal discharge. (sinustip.info)
  • It is recommended that a person visits a doctor at the first sign of chronic sinus symptoms. (sinustip.info)
  • Causes
  • The pressure difference causes the mucosal lining of the sinuses to become swollen and submucosal bleeding follows with further difficulties ventilating the sinus, especially if the orifices are involved. (wikipedia.org)
  • suture
  • Linear skull fractures are usually of little clinical significance unless they parallel in close proximity or transverse a suture, or they involve a venous sinus groove or vascular channel. (wikipedia.org)
  • The resulting complications may include suture diastasis, venous sinus thrombosis, and epidural hematoma. (wikipedia.org)
  • tumor
  • NMPMs in the nasopharynx and sphenoid sinus are rare complications after radiation therapy to the skull base, but the radiologist needs to be aware of their appearance so that they can be considered in the differential diagnosis of suspected tumor recurrence. (ajnr.org)
  • If a fast-growing tumor erodes the floor of the sinus, the vidian nerve could be in danger. (wikipedia.org)
  • ostium
  • The pressure differentials are directed to the center of the sinuses producing mucosal edema, transudation, and mucosal-or submucosal-hematoma, leading to further occlusion of the sinus ostium. (wikipedia.org)
  • The magnitude of the pressure difference needed to produce a barotrauma probably shows great individual variation and is related to the size of the sinus ostium and the rate of ambient pressure change. (wikipedia.org)
  • severe
  • 6 However, there are some patients who go on to develop severe delayed radiation effects resulting in the formation of unusual nonmalignant polyps and masses (NMPMs) in the nasopharynx and sphenoid sinus. (ajnr.org)
  • headache
  • Consider imaging studies in recurrent or unclear cases: some sinus involvement is frequent early in the course of uncomplicated viral URI Treatment comprises symptomatic support usually via analgesics for headache, sore throat and muscle aches. (wikipedia.org)
  • polyps
  • The purpose of this study was to document the MR appearance of unusual nonmalignant polyps or masses (NMPMs) in the nasopharynx and sphenoid sinus arising after radiation treatment of nasopharyngeal carcinoma. (ajnr.org)
  • Two patterns were identified: contrast enhancing nasopharyngeal polyps ranging in size from 1 to 5 cm ( n = 5) and sphenoid sinus masses consisting of a nonenhancing mass filling a nonexpanded sinus ( n = 4) and a heterogeneous enhancing mass expanding the sinus ( n = 2). (ajnr.org)
  • headaches
  • The challenge with sinus headaches is that they are very pain-full and people who are looking for a treatment tend to be more than likely looking to get rid of the pain. (zoejo.com)
  • Today there seems to be more and more people that get affected by sinus headaches and also it is now reported that more than 30 million American report sinus headaches annually. (zoejo.com)