endoscopic anatomy of nose and sphenoid sinus
Post on 10-Feb-2017
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Endoscopic Anatomy of NOSE & Sphenoid sinusDr ZEESHAN AHMADSR (Neuro-otology)Department of NeurosurgerySGPGIMS, Lucknow
Septum
HADAD
Lateral wallTurbinates
Meati
Ostia
Lateral wallInferior turbinate separate boneInferior meatus NLD opening
Lateral wallMiddle turbinate attachment planesMiddle meatus intricate anatomyUncinateHiatus InfundibulumBulla ethmoidalisMaxillary osFrontal recess
Lateral wall
Lateral wallSuperior turbinate olfactory epitheliumSupeior meatus posterior ethmoids
Supreme turbinate sometimes
Lateral wall
Lateral wall
Lateral wall
Lateral wall
Lateral wall
Lateral wall
Blood supply of nose - septum
Blood supply of nose - lateral wall
Blood supply of noseSphenopalatinePosterior lateral nasalNasoseptalVidianDescending palatine
Blood supply of nose
Diagnostic nasal endoscopyFirst passVestibuleNasal valveInferior turbinateChoanaNasopharynx post and superior wallEustachian tubeContralateral ET and Rosenmuller recessInferior meatus and NLD
Diagnostic nasal endoscopySecond passChoana upper edgeSphenoethmoidal recessSuperior and supreme turbinatesSphenoid ostiumPosterior aspect of olfactory fossa
Diagnostic nasal endoscopyThird passSphenopalatine areaUncinate processHiatus semilunarisMaxillary os acc/natEthmoial infundibulumEthmoidal bullaFrontal recessOlfactory fossa anterior aspect
Sphenoid sinusLocationPneumatizationSepta (optic 7%, ICA 40%)OnodiOstiumLandmarks
location
pneumatizationConchal 3%Presellar 11%Sellar 59%Mixed 27%
---Extensive
pneumatization
SeptaNever midline(optic 7%, ICA 40%)
onodi
onodi
ostium
landmarks
landmarks
landmarks
landmarks
landmarks
THANK YOU
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