PMC7569445_01
Endoscopic examination of the nose showing a large, left-sided nasal polypoid mass occluding the entire left nasal cavity.
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It was causing nasal obstruction on the left side of the nose (Figure 1).
CT scan of the paranasal sinuses with contrast. The coronal and axial section shows a left anterior nasal mass.
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In paranasal sinus computed tomography (CT), approximately 16 x 40 x 35 mm-sized polypoid mass was observed on the left side, filling the nasal cavity completely (Figure 2).
MRI scan of the paranasal sinuses with contrast. The coronal and axial section shows a left anterior heterogeneous hypointense nasal mass.
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T1 and T2 sections (Figure 3). The surgery was planned to the patient under general anesthesia.
Gross image of the mass revealed multiple fragments of soft tan-gray tissue.
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The mass was excised en bloc with the septum mucosa (Figure 4).
Histopathological examination showing high cellular density and a palisading pattern of the tumor cells (x40 power, H&E-stained microscopic slide picture).
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In the histological examination of the mass, spindle cell proliferation consisting of photocellular and hypocellular alternating areas and diffuse positivity in spindle cells with S100 were observed (Figures 5 and 6).
Immunohistochemistry showing tumor cells that are strongly positive for S-100.
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In the histological examination of the mass, spindle cell proliferation consisting of photocellular and hypocellular alternating areas and diffuse positivity in spindle cells with S100 were observed (Figures 5 and 6).