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Here we see a large papillary
adenoma that probably arose from the transitional epithelium lining the pelvis
of the kidney. It obviously distorts the normal renal architecture.
Note also the marked chronic pyelonephritis and arteriolar disease in the kidney adjacent to the adenoma. See this slide with the virtual microscope. |
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Here we see the junction of the adenoma and the renal tissue. Although looking a little atypical, the cells of the adenoma are basically benign. |