Fig 1. EPI DWI and DPI for residual cholesteatoma detection. DWI axial b = 0 (A), b = 500 (B), b = 1000 (C) and coronal b = 0 (D), b = 500 (E), b = 1000 (F) EPI sequences. Early (G and I) and delayed (H and J) postconstrast T1-weighted axial (G and H) and coronal (I and J) sequences. With DWI, an increasing signal intensity (arrow) between b = 0 (A and D), b = 500 (B and E), and b = 1000 (C and F) sequences was observed in the left hypotympanum. A hypointense space-occupying lesion (arrows) was also observed in the left hypotympanum with early enhanced T1-weighted sequences (G and I). This lesion was more conspicuous on delayed imaging (H and J, large arrows), whereas scar tissue was intensely enhanced (small arrows). Thus, surgery confirmed a residual cholesteatoma of the left hypotympanum.