Christopher G Przybycin et al.
The American journal of surgical pathology, 44(10), 1322-1330 (2020-09-16)
Trophoblastic differentiation (including choriocarcinoma) arising in urothelial carcinoma has been described in numerous case reports, but never in a single series. We present a series of these tumors, describing the morphologic spectrum, applying traditional and novel immunohistochemical stains, and characterizing