PMC6778900_01
Axial (a), Coronal (b), and Sagittal (c) MSCT showed a round large lobulated mass in naso-oropharyngeal area, with well-defined margin (arrow) without involvement of the clivus.
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fig1
Radiological examination by axial, coronal, and sagittal MSCT with and without contrast confirmed the presence of a round-large lobulated mass in naso-oropharyngeal region, approximately 5 x 6 cm with well-defined margin without involvement of the clivus (Figure 1).
Cords and lobules of physaliferous cells separated by fibrous septa [(a), H & E stain, 100x magnification], abundant eosinophilic and vacuolated cytoplasm with prominent vesicular nuclei embedded in extensive myxoid stroma. [(b, c), H & E stain, 200x magnification].
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fig2
Mitotic figures were inconspicuous (Figure 2).
Immunohistochemistry analysis with 3 different markers (400x magnification) showed strong cytoplasmic expression of Cytokeratine (a), which was as strong as Vimentin (b), Meanwhile, S100 demonstrated a slightly weaker expression (c), (inset : 200x magnification).
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fig3
Meanwhile, expression of S100 was slightly weaker (Figure 3).