I feel the mucosa is OK but picture 3 & 4 with focal accumulation of plasma cells, at this age, plasmacytoma is a DDx, Immunostain for CD138, Kappa, Lambda is useful for your final Dx.
I feel the mucosa is OK but picture 3 & 4 with focal accumulation of plasma cells, at this age, plasmacytoma is a DDx, Immunostain for CD138, Kappa, Lambda is useful for your final Dx.