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Insights into Imaging
Fig. 14 | Insights into Imaging

Fig. 14

From: Non-echoplanar diffusion weighted imaging in the detection of post-operative middle ear cholesteatoma: navigating beyond the pitfalls to find the pearl

Fig. 14

Using DWI following canal wall down surgery. a DWI b1000 image depicted residual disease (white arrow) at the mastoid tip, also seen as low signal on the b corresponding non-contrast enhanced T1 weighted image and a heterogenous, but predominantly high signal on the c T2 weighted image. d Surgical exploration confirmed residual cholesteatoma pearl (white arrow) walled off in the mastoid tip and was not readily visible on direct inspection at the preceding follow-up clinic. The lesion also had low ADC signal and value

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