PMC9617495_01
PMC9617495_02
A) abdominal CT scan showing a right renal mass (arrow); B) low significant enhancement (arrow)
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F1
There are a few small lymph nodes in the right para-aortic area less than 10 mm (Figure 1).
histopathology of right renal mass showing diffuse infiltration of atypical lymphocyte (H&E x250)
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F2
The histopathology report showed lymphoma cells that were small and in a diffuse pattern (Figure 2).
immunohistochemistry staining of the resected mass showing diffuse and strongly positive for CD20 (H&E x250)
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F3
The immunohistochemistry (IHC) study was positive for CD20, CD45, Ki-67 (70%) and negative for CD10, CD5, and CK1, suggestive of the diagnosis of DLBCL (Figure 3).