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Postoperative Frontal Sinus Recess
A close-up view into the frontal recess area following endoscopic sinus surgery. The unobstructive passage into the frontal sinus can be clearly seen in the 12 o'clock position.
![The Sphenoethmoidal Recess [right]](https://medtube.net/images/min/630ecefaf7f9d9f90d9a88f50c4c91db/149/112/1 "The Sphenoethmoidal Recess [right]")
The Sphenoethmoidal Recess [right]
A right sphenoethmoidal recess. Note the superior and supreme turbinates as well as the sphenoid sinus ostium. There is some thickened, nonpurulent secretions issuing from the posterior ethmoid and sphenoid...
![The Sphenoid Sinus Ostium [right]](https://medtube.net/images/min/6d4931745b5d275949b32ca77a61a23e/149/112/1 "The Sphenoid Sinus Ostium [right]")
The Sphenoid Sinus Ostium [right]
The sphenoid sinus ostium is located in the posteriorosuperior portion of the nasal cavity just lateral to the insertion of the posteriorosuperior portion of the nasal septum into the anterior wall of...
![The Superior Turbinates and the Superior Meatus [right]](https://medtube.net/images/min/b4a2525eb20acff055ef52ef0d8e61e7/149/112/1 "The Superior Turbinates and the Superior Meatus [right]")
The Superior Turbinates and the Superior Meatus...
Endoscopically, the superior turbinate appears to rise from the middle terminate or to be a subdivision of it. From a developmental point of view, however, these are two very different structures connected...
![Normal Uncinate Process [right]](https://medtube.net/images/min/48411754ee304e0ba21f07335308b1ca/149/112/1 "Normal Uncinate Process [right]")
Normal Uncinate Process [right]
The curved structure that arises from the lacrimal ridge and extends posteromedially like a visor over the anterior aspect of the ethmoidal bulla is the uncinate process. The ethmoidal bulla can be seen...
![The Ethmoidal Bulla [Right]](https://medtube.net/images/min/a250250686b6dbef13c046febf235d77/149/112/1 "The Ethmoidal Bulla [Right]")
The Ethmoidal Bulla [Right]
The anterior ethmoidal bulla arises from the lamina papyracea just behind the uncinate process. The space between the posterior free margin of the uncinate process and the anterior surface of the ethmoidal...
Normal Right Middle Turbinate
The area lateral to the middle turbinate is called the middle meatus. Note the insertion of the middle turbinate [the neck of the middle turbinate] into the lateral nasal wall. A normal middle turbinate...
The Nasolacrimal Duct
The lacrimal sac empties into the nasal cavity underneath the anterior end of the inferior turbinates. The opening of the nasolacrimal duct and Hasner's Valve can be clearly seen beneath the anterior...
![Erectile Tissue on the Floor of the Anterior Nasal Cavity [Right Side]](https://medtube.net/images/min/aa6f7665a9b66d8404fec0d2799dc2ca/149/112/1 "Erectile Tissue on the Floor of the Anterior Nasal Cavity [Right Side]")
Erectile Tissue on the Floor of the Anterior...
Some patients have a discrete collection of erectile tissue located on the floor of the nasal cavity just behind the nasal vestibule. This area appears as a raised but compressible mound or swelling arising...
![Normal Vasodilatation Of The Inferior Turbinates [CT scan]'s](https://medtube.net/images/min/7b902ff4a6375c3ac199d624ebec471d/149/112/1 "Normal Vasodilatation Of The Inferior Turbinates [CT scan]'s")
Normal Vasodilatation Of The Inferior Turbinates...
The erectile tissue within the nasal cavity, which is localized primarily in the inferior turbinates, is usually in a state of partial vasodilatation. The inferior turbinates are primarily responsible...
![Vasoconstrictionof the Inferior Turbinates [CT scan]](https://medtube.net/images/min/140d76e98fe479d7dba72db0e826babb/149/112/1 "Vasoconstrictionof the Inferior Turbinates [CT scan]")
Vasoconstrictionof the Inferior Turbinates [CT...
This is the same patient shown in the previous CT scan approximately 10 minutes after the application of a topical vasoconstrictor. Note the decrease in size of the inferior turbinates. A large concha...
![Vasoconstricted Inferior Turbinate [left]](https://medtube.net/images/min/816aed07d1a0c3b497adb899f0c29a92/149/112/1 "Vasoconstricted Inferior Turbinate [left]")
Vasoconstricted Inferior Turbinate [left]
A proper examination of the interior of the nasal cavity cannot generally be performed until he inferior turbinates have been vasoconstricted to allow visualization into the nasal cavity. Vasoconstriction...
![Swollen [vasodilated] Inferior Turbinate [left]](https://medtube.net/images/min/eea1fc655a6885c558c6433eb3ab6d5b/149/112/1 "Swollen [vasodilated] Inferior Turbinate [left]")
Swollen [vasodilated] Inferior Turbinate [left]
When the erectile tissue within the inferior turbinate is dilated, the inferior turbinate may swell to such an extent that it compromises nasal airflow.
![Normal Inferior Turbinate [right]](https://medtube.net/images/min/a3e8c0a17b8b4731d573e3ffa6c9b03f/149/112/1 "Normal Inferior Turbinate [right]")
Normal Inferior Turbinate [right]
The inferior turbinate is the lowest and most anterior of the three scroll shaped nasal turbinates [inferior, middle and superior]. It's anterior border is the first intranasal structure encountered during...
Jacobson's Organ
A shallow circular pit or depression, which resembles a small ulcer or punched out lesion can sometimes be seen on the anterior cartilaginous nasal septum. This is known as "Jacobson's Organ",...
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