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FIG 1. A, Coronal CT viewed at wide window settings shows fluffy calcifications (arrows) of the turbinates and sinus walls adjacent to a nasal mass. Soft tissue windowing shows entrapped secretions and inflammatory mucosal thickening in the right maxillary and sphenoid sinuses.
B, Axial T2-weighted MR image (TR/TE, 3000/96 ms) through the paranasal sinuses, demonstrates a predominantly hypointense lesion (arrows) involving the right sinonasal cavity. In contrast, entrapped secretions in the right maxillary and sphenoid sinuses have high T2-weighted signal intensity.
C, Contrast-enhanced, axial fat-suppressed T1-weighted image (TR/TE, 540/12 ms) demonstrates peripheral enhancement of the lesion (arrows).
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