Article Figures & Data
Figures
- Fig 1.
A, Coronal MDCT image depicts the location of the axial plane at the base of the scutum. B, Axial MDCT image at the level where the first bone image appears superior to the air-containing external auditory canal. The malleoincudal junction is well-seen.
- Fig 2.
A, Lateral attic measurements in a healthy subject. Axial MDCT demonstrates anterolateral (AL), lateral (L), and posterolateral (PL) measurements from the center of the malleoincudal articulation at the level of the base of the scutum in a healthy subject. B, Lateral attic measurements in a 27-year-old patient with a history of cholesteatoma. There is a left auto-atticotomy with smooth remodeling and widening of the anterolateral (AL), lateral (L), and posterolateral (PL) walls of the attic.
- Fig 3.
Auto-atticotomy in a 35-year-old patient with a remote history of draining ear. Coronal MDCT demonstrates scutal absence (arrow) mimicking the appearance of a surgical atticotomy. Note the lack of soft-tissue inflammatory changes.
- Fig 4.
Schematic drawing demonstrating the surgical atticotomy margins (dotted line). S indicates scutum; T, tympanic membrane; M, malleus.
Tables
Patients Lateral Anterolateral Posterolateral A 3.6 4.6 3.8 B 3.8 4.5 3.7 C 5 4.4 3.2 D 3.6 5 3.3 E 3.2 4 2.5 F 4.3 3.8 3.7 G 4.3 4.1 4.5 H 2.3 3.3 2.3 I 4.8 4.4 6.9 J 3.7 3.6 4.3 K 3.9 4.1 4.1 L 3.7 3.6 3.9 M 7.5 4.3 4.5 N 3.7 4.2 3.5 O 4.7 5.5 3.9 P 3.9 4 3.4 Q 5.4 7.4 4.2 R 3.5 3.6 4.7 S 3.5 4.8 3.3 T 3.8 5.2 4.4 U 4.1 4.2 3.8 Controls Lateral Anterolateral Posterolateral AA 2.8 2.7 2.7 BB 3 3.4 3 CC 2.4 3 2.6 DD 1.9 3.6 2.2 EE 2 3.1 2.3 FF 1.8 2.4 2 GG 1.8 2.6 1.9 HH 2.5 4.2 2.3 II 2.3 3.8 2.6 JJ 2.3 3.2 2.5 KK 2.9 3.6 2.3 LL 2.1 3.2 2.3 MM 2.2 2.3 2.4 NN 2.3 3.1 2.3 OO 2.5 2.7 2.2 PP 2.9 3.8 2.9 QQ 2.1 2.6 2.4 RR 2.3 2.4 2.3 SS 2.6 3.6 3.3 TT 2.8 3.6 3.2
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