What are sphenoid air cells?
What are sphenoid air cells?
Sphenoethmoidal air cell, also commonly known as the Onodi air cell, is an anatomical variant of the paranasal sinuses, important due to its close proximity to the optic nerve and internal carotid artery.
What are onodi air cells?
The Onodi cell is a posterior ethmoid air cell that lies superior to the sphenoid sinus and is in close proximity to at least one optic nerve or internal carotid artery (ICA). This close proximity of the Onodi cells to the optic nerve and ICA is a risk factor for surgical complications.
What are ethmoid air cells?
The ethmoid sinuses or ethmoid air cells of the ethmoid bone are one of the four paired paranasal sinuses. The cells are variable in both size and number in the lateral mass of each of the ethmoid bones and cannot be palpated during an extraoral examination. They are divided into anterior and posterior groups.
What is a Haller cell?
Haller’s cells are defined as air cells situated beneath the ethmoid bulla along the roof of the maxillary sinus and the most inferior portion of the lamina papyracea, including air cells located within the ethmoid infundibulum.
Where does sphenoid sinus open?
The sphenoidal sinus opens into the sphenoethmoidal recess of the nasal cavity. The floor of the sinus is in the roof of the nasal cavity and the nasopharynx. The roof of the sinus is thin.
Can sphenoid sinusitis be cured?
In general, start medical treatment of uncomplicated acute sphenoid sinusitis once the diagnosis is made with the administration of broad-spectrum antibiotics, as well as the addition of topical and systemic decongestants. Try medical treatment for 24 hours.
What are the sphenoid sinus cyst symptoms?
This causes pus and mucus to accumulate within the sinus. Symptoms can include fever, headache, sinus pain, stuffy nose, and impaired sense of smell .
What is the ethmoid air cell?
Summary Information: Ethmoid Air Cells. They are located in the skull and together as a group, form the ethmoid sinuses in the area between the upper nose and the eyes. They are separated into individual air cells by bony laminae. The function of ethmoid air cells is believed to include warming, moistening, and filtering inspired air…
What is anterior ethmoid air cells?
Ethmoidal air cells. The anterior ethmoidal air cells drain to the hiatus semilunaris and middle meatus via the ethmoid bulla, which forms parts of the ostiomeatal complex. The posterior ethmoidal air cells drain to the superior meatus and sphenoethmoidal recess 2. Some of the ethmoidal air cells have been given specific names,…
