PMC4568333_01
(a) Low power images of H&E stain show infiltration of the bladder wall by small plasmacytoid lymphocytes. (b) High power images of H&E stain show infiltration of the bladder wall by small plasmacytoid lymphocytes. (c) CD20 stain shows positive cells. (d) PAX-5 stain shows diffusely positive cells.
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fig1
Initial pathology based on H&E stain and immunohistochemistry favored extra nodal marginal zone lymphoma with follicular colonization, with cells positive for CD20 and PAX-5 and negative for CD5 and CD10 (Figure 1).
3D conformal radiation therapy of MALT lymphoma of the bladder with dose distributions depicted in the sagittal (a), axial (b), and coronal (c) planes.
CRIHEM2015-934374.002.jpg
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fig2
The adjacent normal structures were shielded with a multileaf collimator (MLC) (Figure 2).