Question
In FESS surgery structure preserved is?
| A. |
Ethmoid sinus
|
| B. |
Sphenoid sinus
|
| C. |
Maxillary sinus
|
| D. |
None
|
Show Answer
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|
Correct Answer � C
Explanation
|
|
FESS is the removal of tissue obstructing the Osteo Metal Complex (OMC) and the facilitation of drainage while conserving the normal non-obstructing anatomy and mucous membrane.
TYPES OF FUNCTIONAL ENDOSCOPIC SINUS SURGERY:
|
Type 1
|
Nasal endoscopy and uncinectomy with or without agger nasi cell exenteration.
|
|
Type 2
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Nasal endoscopy, uncinectomy, bulla ethmoidectomy, removal of sinus lateralis mucous
membrane and exposure of frontal recess/ frontal sinus
|
|
Type 3
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Type 2 plus maxillary sinus antrostomy through the natural sinus ostium
|
|
Type 4
|
Type 3 plus complete posterior ethmoidectomy
|
|
Type 5
|
Type 4 plus sphenoidectomy & stripping of mucous membrane
|
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