Presentation is loading. Please wait.

Presentation is loading. Please wait.

CBCT in sinonasal imaging - morphology, diagnostic capability, tracks of ENT surgery Dirk Schulze, Freiburg, DE 3rd World NewTom Day 07-21-2006, Verona,

Similar presentations


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:

1 CBCT in sinonasal imaging - morphology, diagnostic capability, tracks of ENT surgery Dirk Schulze, Freiburg, DE 3rd World NewTom Day , Verona, IT

2

3  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

4

5

6 Anomaly  Aplasia – frontal and sphenoidal sinus more frequent  Hypoplasia – relatively common  Hyperplasia – maxillary and frontal sinus, sphenoidal sinus can stretch along the optic canal

7

8 Sinusitis  Rhinogenic or odontogenic  Thickening of the mucosa  Fluid level (acute)  Pillow-like swelling, complete or partial, mostly with central ventilation (chronic)

9

10

11

12 Cysts  Odontogenic, mucosal retention or pseudocysts  Round shaped, homogenous, all walls can be affected  Calcification, air trapping (perforation)  Differentiation from polyposis may be difficult

13

14

15

16

17

18

19 Mucocele  Ventilation problem (OC)  Sinus completely filled  Expansion, bone destruction  Differentiation from malign neoplasm may be difficult

20

21

22 Teeth (or parts of )  Dislocated teeth, roots, germs  Extraction wound, empty pocket  Fluid level (blood)  Mucosa swelling - sinusitis

23

24

25

26 Foreign bodies  Dislocated fillings, implants, root fillings, impression material...  Associated tooth or mouth-antrum-connection  Mucosa swelling – sinusitis, especially associated with root fillings (fungal infection!)

27

28

29

30 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)

31

32

33

34

35 Thank you!


Download ppt "CBCT in sinonasal imaging - morphology, diagnostic capability, tracks of ENT surgery Dirk Schulze, Freiburg, DE 3rd World NewTom Day 07-21-2006, Verona,"

Similar presentations


Ads by Google