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Fig. 1C. —45-year-old man with inverted papilloma. Contrast-enhanced spin-echo T1-weighted coronal MR image (470/17) shows well-enhancing stroma (small arrows) and less-enhancing epithelium (arrowheads) that create convoluted cerebriform pattern correlating with that seen in B. Trapped secretions (large arrow) in lateralmost portion of right-sided maxillary antrum do not enhance.