PMC5423310_01
Asymptomatic mass noticed at the junction of hard and soft palate (arrow).
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fig1
During follow-up, an asymptomatic submucosal mass of soft tissue consistency was noticed at the junction of the hard and soft palate crossing the midline (Figure 1).
Dense, diffuse infiltration of a minor salivary gland by a monotonous population of lymphoid cells, destroying the normal architecture.
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An organized lymphoid follicle (arrows) and lymhoepithelial islands (yellow arrow) are also observed (haematoxylin and eosin stain, original magnification x100).
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fig2
A few scattered blast cells were also noted (Figure 2 and 3).
Infiltration by numerous centrocyte-like cells (yellow arrows) is observed; scattered blast cells are also noted (arrows) (haematoxylin and eosin stain, original magnification x400).
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fig3
A few scattered blast cells were also noted (Figure 2 and 3).
Neoplastic cells exhibiting positivity for anti-CD20 (original magnification x100).
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fig4
In contrast, stains for BCL-6, CD10, cyclin D1, CD5 and CD3 were negative, while Ki-67 positivity was observed in about 8 - 10% of the neoplastic cells (Figure 4 and 5).
Strong positivity for anti-BCL2 (original magnification x100).
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fig5
In contrast, stains for BCL-6, CD10, cyclin D1, CD5 and CD3 were negative, while Ki-67 positivity was observed in about 8 - 10% of the neoplastic cells (Figure 4 and 5).