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Z. Liu et al. / Clinical Radiology 70 (2015) 943 e 947

Figure 2 CT images of a 46-year-old female patient with type I SSCD with no history of tinnitus. (a) Axial and (b) oblique sagittal CT images of the bony window show type I SSCD (arrow).

Limitations of this study include the retrospective design and the underlying cause of PT was not con fi rmed by treatment. To avoid these limitations, the radiological prevalence of SSCD was compared with and without the superior petrosal sinus running through in PT groups and controls to demonstrate the imaging characteristics of SSCD presenting with PT. In conclusion, the superior petrosal sinus running through the dehiscence may be essential for SSCD to induce PT.

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Con fl ict of Interest

The authors and authors ’ institutions have no con fl ictsof interest. This includes fi nancial or personal relationships that inappropriately in fl uence (bias) his or her actions (such relationships are also known as dual commitments, competing interests, or competing loyalties) within 3 years of the work beginning submitted

Acknowledgements

This work was supported by Grant 81171311 and 81371545 from the National Natural Science Foundation of China, and Grant 13JL03 from Capital Medical University.

References

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