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The "Y" sign of lateral dislocation of the incus
M T Lourenco1, J W Yeakley, B Y Ghorayeb
1Department of Radiology, University of Texas Houston Health Science Center 77030, USA.
The American Journal of Otology
|May 1, 1995
Abstract:
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.