case_images: PMC6370567_01
case_images: Endoscopic examination of the nose showed a large, left-sided nasal polypoidal mass occluding the entire left nasal cavity with smooth overlying mucosa.
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case_images: fig0005
case_images: A rigid endoscopic examination of the nose showed a large, left-sided nasal polypoidal mass with smooth overlying mucosa that occluded the whole left nasal cavity (Fig. 1).
case_images: CT scan of the paranasal sinuses with contrast. The coronal section showed a left anterior lobulated nasal mass of undetermined origin at the level of the cartilaginous part of the nasal septum with mild heterogeneous post IV contrast enhancement.
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case_images: PMC6370567_01_gr2.jpg
case_images: fig0010
case_images: There was no extension to the paranasal sinuses, and no obvious bone invasion was observed (Fig. 2).
case_images: Gross image of the mass revealed multiple fragments of soft to firm tan-gray tissue.
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case_images: PMC6370567_01_gr3.jpg
case_images: fig0015
case_images: Histological examination of the mass revealed three fragments of soft to firm tan-gray tissue, the largest measuring 1.8 x 1.6 x 0.6 cm, and the smallest measuring 0.8 x 0.6 x 0.5 cm (Fig. 3).