Site | Endoscopic | CWU | CWD | Combined | Total |
Attic | 25 (80.6%) | 22 (44.9%) | 14 (33.3%) | 5 (83.3%) | 66 (51.6%) |
Extension into sinus tympani | 12 (38.7%) | 13 (26.5%) | 7 (16.7%) | 1 (16.7%) | 33 (25.8%) |
Extension into facial recess | 7 (22.6%) | 7 (14.3%) | 4 (9.5%) | 1 (16.7%) | 19 (14.8%) |
Extension into Prussak’s space | 4 (12.9%) | 14 (28.6%) | 1 (2.4%) | 0 (0.0%) | 19 (14.8%) |
Extension into hypotympanum | 0 (0.0%) | 2 (4.1%) | 2 (4.8%) | 0 (0.0%) | 4 (3.1%) |
Extension into mastoid | 5 (16.1%) | 16 (32.7%) | 27 (64.3%) | 6 (100.0%) | 54 (42.2%) |