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This process is a method to detect the frontal sinus outflow tract. In some cases after endoscopic sinus surgery, frontal sinus trephining is indicated in order to prevent stenosis of frontal sinus infundibulum by passing down a catheter into the frontal recess. Following endoscopic frontal sinus surgery, frontal sinus trephination can be used ...
The frontonasal duct is a duct through which either frontal sinus drains into the nasal cavity. [2] [3] Each frontal sinus opens into the frontonasal duct by an opening (the opening of frontal sinus or frontal sinus aperture [4]) on the inferomedial part [3] of the floor of the sinus. [4]
It affects women twice as frequently as men. Although the inciting event in this process is unknown, clinicopathologic study suggests that compression of the lumen of the nasolacrimal duct is caused by inflammatory infiltrates and edema. This may be the result of an unidentified infection or possibly an autoimmune disease. [citation needed]
separation of the mucosa from the cartilage in nasal surgery like Septomarginal resectiondisplacement of inferior turbinate Farabuef's periosteal elevator: used in mastoid surgeries like mastoidectomy: Rose's sinus washing canula: to irrigate the maxillary sinuses: Higginson's syringe: irrigating the antrum,nasal douching for atrophic rhinitis
The frontal sinuses are located in the frontal bone; the sphenoidal sinuses in the sphenoid bone; the maxillary sinuses in the maxilla; and the ethmoidal sinuses in the ethmoid bone. [2] [13] A narrow opening called a sinus ostium from each of the paranasal sinuses allows drainage into the nasal cavity. The maxillary sinus is the largest of the ...
Pneumocephalus and comminuted fracture of the frontal sinus Pneumocephalus is the presence of air or gas within the cranial cavity . It is usually associated with disruption of the skull : after head and facial trauma , tumors of the skull base, after neurosurgery or otorhinolaryngology , and rarely, spontaneously.
Persons with dry eye conditions can be fitted with punctal plugs that seal the ducts to limit the amount of fluid drainage and retain moisture. During an ear infection, excess mucus may drain through the nasolacrimal duct in the opposite way tears drain. [citation needed] In humans, the tear ducts in males tend to be larger than the ones in ...
The frontal sinuses are one of the four pairs of paranasal sinuses that are situated behind the brow ridges. Sinuses are mucosa -lined airspaces within the bones of the face and skull. Each opens into the anterior part of the corresponding middle nasal meatus of the nose through the frontonasal duct which traverses the anterior part of the ...