Fig. 7
A 37-year-old female with proven sphenoid sinus inverted papilloma. Axial T2-weighted (a) shows the solid tissue filling the sinus, with faintly depicted curved striations in multiple opposed direction, more resolved in axial non-FAT saturation T2-weighted image (b). Apparent diffusion co-efficient map (c) reflects the compact cellularity with a small apparent diffusion co-efficient value of 0.7 × 10-3 cm2/s. Axial post-gadolinium-enhanced image (d) reveals solid enhancing mass with very ill-defined striations. Axial computed tomography image (e) reveals non-specific opacity. Coronal computed tomography image (f) reveals lobulated sphenoid sinus opacity pedunculated through spheno-ethmoidal recess showing smooth widening