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Fig 2. A, T2-weighted axial image in a 35-year-old male patient with pathologically proved sinonasal undifferentiated carcinoma reveals a mass lesion in the left ethmoidal region (black arrows) with resultant sphenoidal mucocele (white arrows). B, The mass demonstrates heterogeneous enhancement (black arrows) on the post-gadolinium axial T1 image with no enhancement within the mucocele (white arrows). C, The ADC in the lesion averaged 1.042 x 10–3 mm2/s.
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