The "Y" sign of lateral dislocation of the incus.
This report presents a new sign of ossicular dislocation utilizing high resolution computed tomography of the temporal bone. In the case of lateral dislocation of the incus, a "Y" shaped configuration (Y sign) of the malleoincudal complex is seen in the coronal views even though the axial views present a normal "ice cream cone" configurations.
Lourenco
M T
MT
Department of Radiology, University of Texas Houston Health Science Center 77030, USA.
Yeakley
J W
JW
Ghorayeb
B Y
BY
D000293:Adolescent; D000328:Adult; D005260:Female; D006801:Humans; D007188:Incus / Q000000981:diagnostic imaging; D007223:Infant; D004204:Joint Dislocations / Q000000981:diagnostic imaging; D008297:Male; D012189:Retrospective Studies; D012680:Sensitivity and Specificity; D012887:Skull Fractures / Q000000981:diagnostic imaging*; D013701:Temporal Bone / Q000000981:diagnostic imaging* / Q000293:injuries*; D014057:Tomography, X-Ray Computed