https://librepathology.org/w/index.php?action=history&feed=atom&title=Talk%3AHigh-grade_papillary_urothelial_carcinoma 2026-05-28T07:39:30Z Revision history for this page on the wiki MediaWiki 1.36.3 https://librepathology.org/w/index.php?title=Talk:High-grade_papillary_urothelial_carcinoma&diff=53511&oldid=prev 2025-04-03T22:28:48Z

<p><span dir="auto"><span class="autocomment">Flat atypical in background: </span> new section</span></p> <p><b>New page</b></p><div>== Flat atypical in background ==<br /> <br /> The sections show urothelial mucosa with thick papillary structures. Focally, nuclei are large (~3-4x resting lymphocyte), hyperchromatic and have nucleoli. Mitotic activity is present and focally brisk (4 mitoses in 1 HPF, 1 HPF~0.2376 mm*mm). Flat atypical urothelium with proliferation is present in the background; this may be from the edge (or shoulder) of the lesion or it could be in situ disease.</div>

Michael