Fig. 4
A 52-year-old male presented with unilateral nasal obstruction and nasal inverted papilloma. Axial T2-weighted image reveals T2 linear divergent diffuse striations with T2 hypo-intensity with T2 ‘black-out’ (b) reflected by compact cellularity and low apparent diffusion co-efficient value measuring 1.1 × 10-3 cm2/s as seen in apparent diffusion co-efficient map (c). Axial post-gadolinium-enhanced image (d) reveals the striations to be more conspicuous than in T2 image. Axial computed tomography (e) reveals rarefied and widened post-meatal accessory ostium and smooth remodeling of medial maxillary sinus wall. Coronal computed tomography image shows sino-maxillary opacification continuous through smoothly widened ostio-meatal unit with smooth sclerosis of the middle turbinate wall