Presentation on theme: "CBCT in sinonasal imaging - morphology, diagnostic capability, tracks of ENT surgery Dirk Schulze, Freiburg, DE 3rd World NewTom Day 07-21-2006, Verona,"— Presentation transcript:
CBCT in sinonasal imaging - morphology, diagnostic capability, tracks of ENT surgery Dirk Schulze, Freiburg, DE 3rd World NewTom Day 07-21-2006, Verona, IT
Osteomeatal complex most important structure Communication centre between all sinuses (“heavy traffic“) Obstruction or swelling of the OC leads to consecutive retained secretion and sinusitis Sinusitis can descend and ascend via the OC Anatomy
Cysts Odontogenic, mucosal retention or pseudocysts Round shaped, homogenous, all walls can be affected Calcification, air trapping (perforation) Differentiation from polyposis may be difficult
Surgery CMF or ENT surgery Bone augmentation Mucosa displaced by scars, scars contract, bone distraction Widening of physiologic apertures, additional apertures; re-entry mechanism Chronic sinusitis after sinus surgery (CALDWELL- LUC procedure)
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