PMC9636010_01
MR signal intensity of mucocele (red arrow) in axial cut of various sequences (A: T2WI, B: T1WI, C: FLAIR and D: T1 Fat Sat postcontrast).
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The images revealed a large expansive lesion in the region of the ethmoid air cells with high signal intensity on T1W1, T2WI, FLAIR images (Fig. 1A-C) and no post contrast enhancement (Fig. 1D). The lesion was causing significant mass effect over the nasal cavity and adjacent structures, bulging into the anterior cranial fossa showing compression effect over the frontal lobe (Fig. 2A-D).
MR images demonstrating involvement and expansion of the superior nasal cavity by mucocele (red arrow) and extension into anterior cranial fossa compressing the frontal lobe (A: coronal T2WI, B: sagittal T1 Fat Sat post-contrast, C: sagittal T2WI and D: axial T2WI).
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The images revealed a large expansive lesion in the region of the ethmoid air cells with high signal intensity on T1W1, T2WI, FLAIR images (Fig. 1A-C) and no post contrast enhancement (Fig. 1D). The lesion was causing significant mass effect over the nasal cavity and adjacent structures, bulging into the anterior cranial fossa showing compression effect over the frontal lobe (Fig. 2A-D).